Develop Reference

Changing a CSS Class using Javascript If / Then

I am looking for help making an Image Carousel work that only uses HTML, CSS, and Javascript. I was able to get it to function rather well;however, it does not display the 1st image on load.
Script is provided below:
HTML:
<div class="slideshow-container" style="max-width:400px;">
<img class="original-image" src="data:image/png;base64,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" style="width:100%">
<div class="mySlides fade">
<div class="numbertext">1 / 4</div>
<img src="data:image/png;base64,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" style="width:100%">
<div class="text">Caption Text</div>
</div>
<div class="mySlides fade">
<div class="numbertext">2 / 4</div>
<img src="https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcT7vnGsgBgV8QW50dp-wZ4GoCNWu4egKYuxAw&usqp=CAU" style="width:100%">
<div class="text">Caption Two</div>
</div>
<div class="mySlides fade">
<div class="numbertext">3 / 4</div>
<img src="data:image/png;base64,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" style="width:100%">
<div class="text">Caption Three</div>
</div>
<div class="mySlides fade">
<div class="numbertext">4 / 4</div>
<img src="https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcS40B-kTX7c_MdtnIt_NetW2HFHgPlQP-nGbw&usqp=CAU" style="width:100%">
<div class="text">Caption Four</div>
</div>
<a class="prev" onclick="plusSlides(-1)">❮</a>
<a class="next" onclick="plusSlides(1)">❯</a>
</div>
<br>
<div style="text-align:center">
<span class="dot" onclick="currentSlide(1)"></span>
<span class="dot" onclick="currentSlide(2)"></span>
<span class="dot" onclick="currentSlide(3)"></span>
<span class="dot" onclick="currentSlide(4)"></span>
</div>
CSS:
.original-image {
z-index: 66 !important;
display: block;
position: absolute;
}
.original-image-gone {
display: none !important;
}
* {box-sizing:border-box}
.slideshow-container {
max-width: 280px;
position: relative;
margin: auto;
width: 100%;
min-height: 274px;
max-height: 274px;
}
.mySlides {
display: none;
}
.prev, .next {
cursor: pointer;
position: absolute;
top: 50%;
width: auto;
margin-top: -22px;
padding: 16px;
color: white;
font-weight: bold;
font-size: 18px;
transition: 0.6s ease;
border-radius: 0 3px 3px 0;
user-select: none;
display: none;
}
.next {
right: 0;
border-radius: 3px 0 0 3px;
display: none;
}
.prev:hover, .next:hover {
background-color: rgba(0,0,0,0.8);
display: none;
}
.text {
color: #f2f2f2;
font-size: 15px;
padding: 8px 12px;
position: absolute;
bottom: 8px;
width: 100%;
text-align: center;
}
.numbertext {
color: #f2f2f2;
font-size: 12px;
padding: 8px 12px;
position: absolute;
top: 0;
}
.dot {
cursor: pointer;
height: 15px;
width: 15px;
margin: 0 16px;
background-color: #bbb;
border-radius: 50%;
display: inline-block;
transition: background-color 0.6s ease;
}
.active, .dot:hover {
background-color: #717171;
}
.fade {
animation-name: fade;
animation-duration: 1.5s;
}
#keyframes fade {
from {opacity: .4}
to {opacity: 1}
}
Javascript:
<script>
let slideIndex = 1;
showSlides(slideIndex);
// Next/previous controls
function plusSlides(n) {
showSlides(slideIndex += n);
document.getElementById('original-image').classList.replace("original-image-gone");
}
// Thumbnail image controls
function currentSlide(n) {
showSlides(slideIndex = n);
}
function showSlides(n) {
let i;
let slides = document.getElementsByClassName("mySlides");
let dots = document.getElementsByClassName("dot");
let original-image = document.getElementById('original-image');
if (n > slides.length) {slideIndex = 1}
if (n < 1) {slideIndex = slides.length}
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
for (i = 0; i < dots.length; i++) {
dots[i].className = dots[i].className.replace(" active", "");
}
slides[slideIndex-1].style.display = "block";
dots[slideIndex-1].className += " active";
}
</script>
I was hoping the initial slide would load, and so I added a "original image" static image above the slideshow, with the idea of changing its class on click, so it disappears. You can see this with "original-image" and then "original-image-gone"

The way to add a class with JavaScript is just:
document.getElementById("Demo").classList.add("Demo-Class");
The way to remove a class with JavaScript is:
document.getElementById("Demo").classList.remove("Demo-Class");
You could use those like this:
let demo = document.getElementById("demo");
function demoFunction() {
if (demo.classList.contains("Blue-Background")) {
demo.classList.remove("Blue-Background");
demo.classList.add("Pink-Background");
}
else {
demo.classList.remove("Pink-Background");
demo.classList.add("Blue-Background");
}
}
.Blue-Background {
background-color: blue;
color: pink;
}
.Pink-Background {
background-color: pink;
color: blue;
}
<!DOCTYPE html>
<html>
<body>
<p id="demo" class="Blue-Background">Hello!</p>
<button onclick="demoFunction()">Change Paragraph.</button>
</body>
</html>
I'm not sure if this helps but it might.

Search bar seems to be acting as if its position is sticky but I have it set to fixed yet it still moves down when I scroll

NOTE: TO VIEW SEARCH BAR BE SURE TO OPEN THE SNIPPET IN FULL SCREEN
Can someone help me fix this search button so that it doesnt move down the screen when I scroll.
I have it set to position: fixed but for some reason its still scrolling down.
Here is my website so far and I have the search bar on the far right corner. See snippet below (also please view it in full screen to see the search bar properly):
<!DOCTYPE html>
<html>
<link href="https://fonts.googleapis.com/css2?family=Bebas+Neue&display=swap" rel="stylesheet">
<link href="https://fonts.googleapis.com/css2?family=Pathway+Gothic+One&display=swap" rel="stylesheet">
<link href="https://fonts.googleapis.com/css2?family=Kaushan+Script&display=swap" rel="stylesheet">
<link href="https://fonts.googleapis.com/css2?family=Teko:wght#500&display=swap" rel="stylesheet">
<link href="https://fonts.googleapis.com/css2?family=Alfa+Slab+One&display=swap" rel="stylesheet">
<link href="https://fonts.googleapis.com/css2?family=Oswald&display=swap" rel="stylesheet">
<link href="https://fonts.googleapis.com/css2?family=Acme&display=swap" rel="stylesheet">
<link href="https://fonts.googleapis.com/css2?family=Montserrat:ital,wght#1,200&display=swap" rel="stylesheet">
<link href="https://fonts.googleapis.com/css2?family=Fjalla+One&display=swap" rel="stylesheet">
<link href="https://fonts.googleapis.com/css2?family=Permanent+Marker&display=swap" rel="stylesheet">
<link href="https://fonts.googleapis.com/css2?family=Allerta&display=swap" rel="stylesheet">
<head>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=yes" />
<style>
* {
box-sizing: border-box;
}
body {
margin: 0;
background: white;
}
.third-level-menu {
position: absolute;
top: 0;
right: -190px;
width: 190px;
list-style: none;
padding: 0;
margin: 0;
display: none;
}
.third-level-menu>li {
height: 45px;
background-color: #6640C1;
background: #6640C1;
}
.third-level-menu>li:hover {
background-color: gold;
}
.second-level-menu {
position: absolute;
top: 45px;
left: 0;
width: 100%;
/* width: 273.2px; */
list-style: none;
padding: 0;
margin: 0;
display: none;
}
.second-level-menu>li {
position: relative;
height: 45px;
background-color: #6640C1;
background: #6640C1;
width: 100%;
}
.second-level-menu>li:hover {
background-color: gold;
}
.top-level-menu {
display: flex;
list-style: none;
padding: 0;
margin: 0;
width: 100%;
height: 100px;
z-index: 1;
justify-content: space-between;
}
.top-level-menu>li {
position: relative;
height: 30px;
/* width: 273.2px; */
background: #6640C1;
z-index: 2;
text-align: center;
flex: 1;
}
.top-level-menu>li:hover {
background-color: gold !important;
}
.top-level-menu li:hover>ul {
/* On hover, display the next level's menu */
display: inline;
}
/* Menu Link Styles */
.top-level-menu a
/* Apply to all links inside the multi-level menu */
{
font-family: 'Fjalla One', sans-serif;
color: #FFFFFF;
text-decoration: none;
padding: 0 0 0 10px;
background: #6640C1;
/* Make the link cover the entire list item-container */
display: block;
line-height: 45px;
}
.top-level-menu a:hover {
color: #000000;
background-color: gold;
}
.container1 {
max-width: 1200px;
margin: auto;
background-color: white;
overflow: auto;
}
.gallery {
margin: 5px;
border: 5px solid black;
border-radius: 5%;
float: left;
width: 390px;
}
.gallery img {
width: 100%;
height: auto;
border-radius: 5%;
}
.gallery:hover {
transform: scale(1.03);
}
.desc {
padding: 15px;
text-align: center;
font-family: 'Fjalla One', sans-serif;
;
}
#main-title {
font-family: 'Alfa Slab One', cursive;
color: black;
font-size: 60px;
margin: 20px;
padding: 30px;
position: relative;
bottom: -20px;
background-color: transparent;
display: inline-block;
text-align: center;
}
.footer {
background-color: black;
font-family: Verdana, Geneva, Tahoma, sans-serif;
width: 100%;
color: white;
height: 300px;
}
.footer a {
text-decoration: none;
color: white;
}
.container2 {
max-width: 1500px;
margin: auto;
overflow: auto;
}
.container-top {
position: fixed;
background-color: gold;
top: 0;
width: 100%;
height: 10%;
z-index: 1;
text-align: center;
}
.top {
display: inline-block;
font-family: 'Permanent Marker', cursive;
font-size: 30px;
width: 100%;
margin: -20px;
z-index: 1;
}
body {
font-family: Verdana, sans-serif;
}
.mySlides {
object-fit: cover;
width: 100%;
}
.moving-images {
vertical-align: middle;
}
/* Slideshow container */
.slideshow-container {
max-width: auto;
position: relative;
margin-top: -4%;
}
/* Caption text */
.text {
color: #f2f2f2;
font-size: 15px;
padding: 8px 12px;
position: absolute;
bottom: 8px;
width: 100%;
text-align: center;
}
/* The dots/bullets/indicators */
.dot {
height: 15px;
width: 15px;
margin: 2px 2px;
background-color: #bbb;
border-radius: 50%;
display: inline-block;
transition: background-color 0.6s ease;
}
.active {
background-color: #717171;
}
/* On smaller screens, decrease text size */
#media only screen and (max-width: 300px) {
.text {
font-size: 11px
}
}
.arrow {
border: solid white;
border-width: 0 3px 3px 0;
display: inline-block;
padding: 3px;
align-items: center;
}
.arrow i:hover {
color: black;
}
.down {
transform: rotate(45deg);
-webkit-transform: rotate(45deg);
}
.title-block {
position: relative;
background-color: white;
font-family: 'Alfa Slab One', cursive;
width: 100%;
color: black;
margin: 50px 0 0 0px;
height: 20px;
text-decoration: none;
}
:root {
--line-thickness: 0.1em;
--glass-size: 50%;
--icon-height: 2.5rem;
--transition-speed: 0.15s;
--timing-function: cubic-bezier(0.66, 1.51, 0.77, 1.13);
--icon-color: black;
}
/* this is already done */
* {
box-sizing: border-box;
}
body {
margin: 0;
background: white;
background-repeat: no-repeat;
background-attachment: fixed;
}
.search-icon {
box-sizing: border-box;
width: 30px;
height: 30px;
max-width: 20em;
transition: all var(--transition-speed) linear, border-color 0s linear var(--transition-speed);
position: fixed;
top: 0;
right: 0;
bottom: 400px;
left: 0;
margin: auto;
border: solid var(--line-thickness);
border-color: rgba(255, 255, 255, 0);
border-radius: 100px;
padding: 0.25em;
}
.search-icon__wrapper {
width: var(--icon-height);
height: var(--icon-height);
position: absolute;
border-radius: 100px;
top: 0;
bottom: 0;
right: 0;
margin: auto 0;
transform: rotate(-45deg);
transition: all 0 linear;
}
.search-icon__wrapper:hover {
cursor: pointer;
}
.search-icon__input {
background: none;
text-align: center;
outline: none;
display: block;
border: none;
background: rgba(255, 255, 255, 0);
width: calc(90% - (var(--icon-height) / 2 + 1rem));
margin-right: 6rem;
height: 100%;
border-radius: 100px;
transition: all var(--transition-speed) linear;
font-size: 20px;
padding: 0 0.5em;
color: black;
}
.search-icon__input::placeholder {
color: grey;
}
.search-icon__glass {
width: var(--glass-size);
height: var(--glass-size);
border: solid var(--line-thickness);
border-color: var(--icon-color);
border-radius: 100px;
margin: 0 auto;
position: relative;
transition: all var(--transition-speed) var(--timing-function) var(--transition-speed), border-color 0s linear var(--transition-speed);
}
.search-icon__handle {
height: calc(100% - var(--glass-size));
width: var(--line-thickness);
margin: 0 auto;
background: var(--icon-color);
position: absolute;
border-radius: 0 0 100px 100px;
left: 0;
right: 0;
bottom: 0;
transition: all var(--transition-speed) var(--timing-function);
transition-delay: var(--transition-speed);
}
.search-icon__handle::after {
content: "";
display: block;
position: absolute;
width: 100%;
height: 100%;
border-radius: inherit;
background: var(--icon-color);
transform: rotate(0deg);
transition: all var(--transition-speed) var(--timing-function);
transition-delay: 0s;
}
.search-icon.open {
width: 200px;
border-color: var(--icon-color);
transition-delay: var(--transition-speed);
}
.search-icon.open .search-icon__input {
transition-delay: var(--transition-speed);
}
.search-icon.open .search-icon__glass {
width: 45%;
height: 45%;
transition: all var(--transition-speed) var(--timing-function) 0s, border-color 0s linear var(--transition-speed);
border-color: rgba(0, 0, 0, 0);
}
.search-icon.open .search-icon__handle {
bottom: calc(50% - (100% - var(--glass-size)) / 2);
border-radius: 100px;
transition-delay: 0s;
}
.search-icon.open .search-icon__handle::after {
transition-delay: var(--transition-speed);
transform: rotate(90deg);
}
</style>
<title>TheLeague.com</title>
</head>
<body>
<main>
<div class="container-top">
<div class="top">
<p>Shop 20% Off All Jerseys Now!</p>
</div>
</div>
<div class="title-block">
<div style="float:right; margin: 0 auto;">
<div class=" search-icon" style="margin-right: 50px; position: fixed;">
<input class="search-icon__input" placeholder="search ...">
<div class="search-icon__wrapper">
<div class="search-icon__glass"></div>
<div class="search-icon__handle"></div>
</div>
</div>
</div>
</div>
<div style="margin:0 auto; width:300px; padding: 1px 0 50px 0; font-size: 25px;">
<a style="text-decoration: none;" href="#">
<h1 style="color: black;">The<u>League</u></h1>
</a>
</div>
</div>
<!-- <div>
<div style="text-align: center;">
<a style="text-decoration: none;" href="#">
<h1 id="main-title">The<u>League</u></h1>
</a>
</div>
</div> -->
<ul class="top-level-menu">
<li><i class="fa fa-home" style="font-size: 20px;"></i> Home</li>
<li>
<i class="fa fa-tag" style="font-size: 20px"></i> Shop All ▼
<ul class="second-level-menu">
<li>Jerseys</li>
<li>Hats</li>
<li>Gym Shorts</li>
</ul>
</li>
<li><i class="fa fa-flask" style="font-size: 20px;"></i> Customize</li>
<li>
<i class="fa fa-futbol-o" style="font-size: 20px;"></i> Teams ▼
<ul class="second-level-menu">
<li>
Soccer
<ul class="third-level-menu">
<li>Barcelona</li>
<li>PSG</li>
<li>Real Madrid</li>
</ul>
</li>
<li>
Basketball
<ul class="third-level-menu">
<li>Golden State Warriors</li>
<li>Celtics</li>
<li>Chicago Bulls</li>
</ul>
</li>
<li>
Football
<ul class="third-level-menu">
<li>New England Patriots</li>
<li>Ravens</li>
<li>Atlanta Falcons</li>
</ul>
</li>
</ul>
<li><i class="fa fa-envelope" aria-hidden="true" style="font-size: 20px;"></i> Contacts Us
</li>
</li>
</ul>
<div class="slideshow-container moving-images">
<div class="mySlides">
<img src="https://images.daznservices.com/di/library/sporting_news/a/fe/kobe-bryant-041315-getty-ftrjpg_hnmwtxmeqtvu1fyv5fnzn6abh.jpg?t=926331162&quality=100"
alt="kobe holding shirt" style="width:100%">
</div>
<div class="mySlides">
<img src="https://images.hdqwalls.com/download/lionel-messi-fc-art-1m-1366x768.jpg" style="width:100%">
<!-- <div class="text">Caption Two</div> -->
</div>
<div class="mySlides">
<img src="https://images.wallpapersden.com/image/download/tom-brady-new-england-patriots-football_21828_1366x768.jpg"
style="width:100%;">
<!-- <div class="text">Caption Three</div> -->
</div>
<div style="text-align: center;">
<button class="w3-button w3-black w3-display-left" onclick="plusDivs(-1)"><strong>❮ Prev</strong>
</button>
<button class="w3-button w3-black w3-display-right" onclick="plusDivs(1)"><strong>Next ❯</strong>
</button>
</div>
</div>
<div style="text-align:center; margin: 10px;">
<span class="dot"></span>
<span class="dot"></span>
<span class="dot"></span>
</div>
<!-- JavaScript -->
<script>
var slideIndex = 1;
showDivs(slideIndex);
function plusDivs(n) {
showDivs(slideIndex += n);
}
function showDivs(n) {
var i;
var x = document.getElementsByClassName("mySlides");
if (n > x.length) { slideIndex = 1 }
if (n < 1) { slideIndex = x.length }
for (i = 0; i < x.length; i++) {
x[i].style.display = "none";
}
x[slideIndex - 1].style.display = "block";
}
var slideIndex = 0;
showSlides();
function showSlides() {
var i;
var slides = document.getElementsByClassName("mySlides");
var dots = document.getElementsByClassName("dot");
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
slideIndex++;
if (slideIndex > slides.length) { slideIndex = 1 }
for (i = 0; i < dots.length; i++) {
dots[i].className = dots[i].className.replace(" active", "");
}
slides[slideIndex - 1].style.display = "block";
dots[slideIndex - 1].className += " active";
setTimeout(showSlides, 5000); // Change image every 2 seconds
}
const searchIcon = document.querySelector(".search-icon__wrapper");
searchIcon.addEventListener("click", e => searchIcon.parentElement.classList.toggle("open"))
</script>
<!-- End of JavaScript -->
<div style="margin: 30px;">
<hr>
</hr>
</div>
<br><br>
<h3 style="text-align: center;font-size: 30px; color: black;font-family:'Fjalla One', sans-serif; ;">Featured
Jerseys</h3><br><br><br>
<div class="container1">
<div class="gallery">
<img src="https://www.teamzo.com/images/re-2019-2020-barcelona-home-nike-shirt-kids-messi-10-1559836177.png"
alt="The image shows the 2019-2020 Barcelona jersey">
<div class="desc"> Barcelona 2019: Messi Jersey </div>
</div>
<div class="gallery">
<img src="https://fanatics.frgimages.com/FFImage/thumb.aspx?i=/productimages/_1768000/altimages/FF_1768829ALT1_full.jpg&w=900"
alt="The image shows the 2019-2020 Barcelona jersey">
<div class="desc"> Golden State Warriors 2019: StephCurry Jersey </div>
</div>
<div class="gallery">
<img src="https://images.footballfanatics.com/FFImage/thumb.aspx?i=/productimages/_3775000/altimages/ff_3775300-29e956db2213fbdbcf67alt1_full.jpg&w=325"
alt="The image shows the 2019-2020 Barcelona jersey">
<div class="desc"> Canucks 2019: Customizable Jersey </div>
</div>
<div class="gallery">
<img src="https://contestimg.wish.com/api/webimage/5e86c1d100c605394a614f9c-large.jpg?cache_buster=71f3e987b756bb4df19be721d299a68b"
alt="The image shows the 2019-2020 Barcelona jersey">
<div class="desc"> Patriots 2019: Tom Brady Jersey </div>
</div>
<div class="gallery">
<img src="https://fanatics.frgimages.com/FFImage/thumb.aspx?i=/productimages/_3609000/altimages/ff_3609123-ef2947d2ef78011fbfc1alt3_full.jpg&w=600"
alt="The image shows the 2019-2020 Barcelona jersey">
<div class="desc"> PSG 2019: Neymar Jersey </div>
</div>
<div class="gallery">
<img src="https://cdn.shopify.com/s/files/1/0271/0975/2920/products/thumb.jpg?v=1580412625"
alt="The image shows the 2019-2020 Barcelona jersey">
<div class="desc"> Lakers 2019: Kobe Bryant Jersey </div>
</div>
</div>
<div style="margin: 30px;">
<hr>
</hr>
</div>
<div class="footer">
<div style="float: left; margin: 0 auto; padding: 0 0 0 40px;">
<p><strong>Find a Store</strong></p>
<p><strong>Sign Up For Email</strong></p>
<p><strong>Become A Member</strong></p>
<p><strong>Site Feedback</strong></p>
</div>
<div style="float:right; margin: 0 auto; width: 300px;">
<p>Get Help</p>
<p>Order Status</p>
<p>Shipping and Delivery</p>
<p>Returns</p>
<p>Payment Options</p>
<p>Contact Us</p>
</div>
<div style="margin:0 auto; width:200px; padding:4px 0 0 0;">
<strong>
<p>About The League</p>
</strong>
<p>News</p>
<p>Careers</p>
<p>Investors</p>
<p>Sustainability</p>
</div>
<div style="margin: 30px; color: white;"><br>
<hr>
</hr>
</div>
</div>
</main>
</body>
</html>

The problem seems to be the positioning of your container-top.
The position:Fixed effects the element in such a way that it follows the user's viewport. the position Absolute, on the other hand, takes the actual document into consideration.
Have a look at w3schools description here: https://www.w3schools.com/css/css_positioning.asp

You should define the position to absolute. Fixed means that it is always fixed to the same position on the screen, while absolute will force it to stay where it is in the element.

Two css code is overleapping each other and can't see one of them

I want to create a webpage where i can see my videos and some pictures from something. I get some free examples from w3schools for the gallery page and some video embedding code from somewhere else. These codes are working on their own but i can't figure out where is the problem exactly when i put them together.
In the style tags there is a
.modal {
display: none;
position: fixed;
z-index: 1;
padding-top: 100px;
left: 0;
top: 0;
width: 100%;
height: 100%;
overflow: auto;
background-color: black;
}
The problem lies in here i think.
Here is my code
/* video */
$(document).ready(function() {
$('#videos a').each(function() {
var data = $(this).attr('data');
$(this).append('<img src="http://img.youtube.com/vi/'+data+'/maxresdefault.jpg" />');
});
$('#videos a').click(function() {
var data = $(this).attr('data');
$('#loader').append('<iframe src="https://www.youtube.com/embed/'+data+'" frameborder="0" allowfullscreen></iframe>');
$('#overlay').fadeIn(250);
});
$('#close').click(function() {
$('#overlay').fadeOut(250,function() {
$('#loader').html('');
});
});
});
/* VIDEÓ */
function openModal() {
document.getElementById("myModal").style.display = "block";
}
function closeModal() {
document.getElementById("myModal").style.display = "none";
}
var slideIndex = 1;
showSlides(slideIndex);
function plusSlides(n) {
showSlides(slideIndex += n);
}
function currentSlide(n) {
showSlides(slideIndex = n);
}
function showSlides(n) {
var i;
var slides = document.getElementsByClassName("mySlides");
var dots = document.getElementsByClassName("demo");
var captionText = document.getElementById("caption");
if (n > slides.length) {slideIndex = 1}
if (n < 1) {slideIndex = slides.length}
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
for (i = 0; i < dots.length; i++) {
dots[i].className = dots[i].className.replace(" active", "");
}
slides[slideIndex-1].style.display = "block";
dots[slideIndex-1].className += " active";
captionText.innerHTML = dots[slideIndex-1].alt;
}
#videos a {
display: block;
width: 25%;
margin-bottom: 20px;
box-sizing: border-box;
padding: 0 10px;
float: left;
cursor: pointer;
text-decoration: none;
outline: 0;
}
#videos a:hover {
opacity: 0.7;
}
#videos a img {
width: 100%;
height: auto;
}
#overlay {
background: rgba(0,0,0,0.8);
position:fixed;
top: 0;
right: 0;
left:0;
bottom: 0;
width: 100%;
height: 100%;
z-index: 99999;
display: none;
}
#overlay .modal {
background: #fff;
border-radius: 5px;
width: 90%;
margin: 100px auto;
max-width: 800px;
min-height: 100px;
position: relative;
padding: 30px 20px 15px;
}
#overlay .modal #close {
position: absolute;
top: 5px;
right: 5px;
cursor: pointer;
}
#overlay iframe {
width: 100%;
}
/* VIDEÓ VÉGE */
body {
font-family: Verdana, sans-serif;
margin: 0;
}
* {
box-sizing: border-box;
}
.row > .column {
padding: 0 8px;
}
.row:after {
content: "";
display: table;
clear: both;
}
.column {
float: left;
width: 25%;
}
/* The Modal (background) */
.modal {
display: none;
position: fixed;
z-index: 1;
padding-top: 100px;
left: 0;
top: 0;
width: 100%;
height: 100%;
overflow: auto;
background-color: black;
}
/* Modal Content */
.modal-content {
position: relative;
background-color: #fefefe;
margin: auto;
padding: 0;
width: 90%;
max-width: 1200px;
}
/* The Close Button */
.close {
color: white;
position: absolute;
top: 10px;
right: 25px;
font-size: 35px;
font-weight: bold;
}
.close:hover,
.close:focus {
color: #999;
text-decoration: none;
cursor: pointer;
}
.mySlides {
display: none;
}
.cursor {
cursor: pointer;
}
/* Next & previous buttons */
.prev,
.next {
cursor: pointer;
position: absolute;
top: 50%;
width: auto;
padding: 16px;
margin-top: -50px;
color: white;
font-weight: bold;
font-size: 20px;
transition: 0.6s ease;
border-radius: 0 3px 3px 0;
user-select: none;
-webkit-user-select: none;
}
/* Position the "next button" to the right */
.next {
right: 0;
border-radius: 3px 0 0 3px;
}
/* On hover, add a black background color with a little bit see-through */
.prev:hover,
.next:hover {
background-color: rgba(0, 0, 0, 0.8);
}
/* Number text (1/3 etc) */
.numbertext {
color: #f2f2f2;
font-size: 12px;
padding: 8px 12px;
position: absolute;
top: 0;
}
img {
margin-bottom: -4px;
}
.caption-container {
text-align: center;
background-color: black;
padding: 2px 16px;
color: white;
}
.demo {
opacity: 0.6;
}
.active,
.demo:hover {
opacity: 1;
}
img.hover-shadow {
transition: 0.3s;
}
.hover-shadow:hover {
box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
}
<link href='https://fonts.googleapis.com/css?family=Roboto+Mono:400,300' rel='stylesheet' type='text/css'>
<script src="https://code.jquery.com/jquery-3.4.1.js"></script>
<h1 style="text-align:center">Lightbox</h1>
<div class="row">
<div class="column">
<img src="img_nature.jpg" style="width:100%" onclick="openModal();currentSlide(1)" class="hover-shadow cursor">
</div>
<div class="column">
<img src="img_snow.jpg" style="width:100%" onclick="openModal();currentSlide(2)" class="hover-shadow cursor">
</div>
<div class="column">
<img src="img_mountains.jpg" style="width:100%" onclick="openModal();currentSlide(3)" class="hover-shadow cursor">
</div>
<div class="column">
<img src="img_lights.jpg" style="width:100%" onclick="openModal();currentSlide(4)" class="hover-shadow cursor">
</div>
</div>
<div id="myModal" class="modal">
<span class="close cursor" onclick="closeModal()">×</span>
<div class="modal-content">
<div class="mySlides">
<div class="numbertext">1 / 4</div>
<img src="img_nature_wide.jpg" style="width:100%">
</div>
<div class="mySlides">
<div class="numbertext">2 / 4</div>
<img src="img_snow_wide.jpg" style="width:100%">
</div>
<div class="mySlides">
<div class="numbertext">3 / 4</div>
<img src="img_mountains_wide.jpg" style="width:100%">
</div>
<div class="mySlides">
<div class="numbertext">4 / 4</div>
<img src="img_lights_wide.jpg" style="width:100%">
</div>
<a class="prev" onclick="plusSlides(-1)">❮</a>
<a class="next" onclick="plusSlides(1)">❯</a>
<div class="caption-container">
<p id="caption"></p>
</div>
<div class="column">
<img class="demo cursor" src="img_nature_wide.jpg" style="width:100%" onclick="currentSlide(1)" alt="Nature and sunrise">
</div>
<div class="column">
<img class="demo cursor" src="img_snow_wide.jpg" style="width:100%" onclick="currentSlide(2)" alt="Snow">
</div>
<div class="column">
<img class="demo cursor" src="img_mountains_wide.jpg" style="width:100%" onclick="currentSlide(3)" alt="Mountains and fjords">
</div>
<div class="column">
<img class="demo cursor" src="img_lights_wide.jpg" style="width:100%" onclick="currentSlide(4)" alt="Northern Lights">
</div>
</div>
</div>
<br>
<h2 style="text-align:center">Videos</h2>
<div id="videos">
<a data="uT6YOI6JcRs"></a>
<a data="B9FzVhw8_bY"></a>
<a data="d0K436vUM4w"></a>
<a data="PhbWIFDqQfk"></a>
</div>
<div id="overlay">
<div class="modal">
<div id="close">X</div>
<div id="loader"></div>
</div>
</div>
I don't get errors. I wanted to be able to click to the images separated from the videos and vice-versa. If you delete the css from VIDEÓ to VIDEÓ VÉGE You can see that the image gallery is working. And if you delete the css from VIDEÓ VÉGE to the bottom of the style you can see that the video page is working too.
I tried to modify the z-indexes for both of the css codes.

Okay the problem was that i used two of the same .modal in the css. I renamed the video's css modal to modale in both the css and in the html and everything is working. Thank you all!

Slideshow with auto play and the ability to select via dots

I've made a slideshow, which works perfectly fine on its own, without the auto play function I've added to it. But as soon as I add the auto play function its loading pictures in below it and changing the look of my page.
The idea is to have five images in a slideshow which will automatically scroll, but if the user wants to select one of the particular images, they can do via the dots on the bottom.
I feel like I'm missing something quiet obvious, anyone got any ideas?
var slideIndex = 1;
showSlides(slideIndex);
window.plusSlides = function(n) {
showSlides(slideIndex += n);
};
window.currentSlide = function(n) {
showSlides(slideIndex = n);
};
function showSlides(n) {
var i;
var slides = document.getElementsByClassName("mySlides");
var dots = document.getElementsByClassName("dot");
if (n > slides.length) {
slideIndex = 1;
}
if (n < 1) {
slideIndex = slides.length;
}
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
for (i = 0; i < dots.length; i++) {
dots[i].className = dots[i].className.replace(" active", "");
}
slides[slideIndex - 1].style.display = "block";
dots[slideIndex - 1].className += " active";
}
$(".slideshow-container > .mySlides:gt(0)").hide();
setInterval(function() {
$('.slideshow-container > .mySlides:first')
.fadeOut(1000)
.next()
.fadeIn(1000)
.end()
.appendTo('.slideshow-container');
}, 3000);
* {
box-sizing: border-box
}
body {
font-family: Verdana, sans-serif;
margin: 0
}
.mySlides {
display: none
}
img {
vertical-align: middle;
}
/* Slideshow container */
.slideshow-container {
max-width: 130em;
position: relative;
margin: auto;
width: 100%;
img {
#include curvededges();
width: 130em;
object-fit: cover;
margin-top: 0.5em;
max-height: 85em;
}
}
/* Next & previous buttons */
.prev,
.next {
cursor: pointer;
position: absolute;
top: 50%;
width: auto;
padding: 16px;
margin-top: -22px;
color: white;
font-weight: bold;
font-size: 18px;
transition: 0.6s ease;
border-radius: 0 3px 3px 0;
}
/* Position the "next button" to the right */
.next {
right: 0;
border-radius: 3px 0 0 3px;
}
/* On hover, add a black background color with a little bit see-through */
.prev,
.next {
display: none;
}
.prev:hover,
.next:hover {
background-color: rgba(0, 0, 0, 0.8);
display: none;
}
/* Caption text */
.text {
color: #f2f2f2;
font-size: 15px;
padding: 8px 12px;
position: absolute;
bottom: 8px;
width: 100%;
text-align: center;
}
/* Number text (1/3 etc) */
.numbertext {
color: #f2f2f2;
font-size: 12px;
padding: 8px 12px;
position: absolute;
top: 0;
display: none;
}
/* The dots/bullets/indicators */
.dot {
cursor: pointer;
height: 3em;
width: 3em;
margin: 0 1em;
background-color: transparent;
border: solid $white 2px;
border-radius: 50%;
display: inline-block;
transition: background-color 0.6s ease;
}
.active,
.dot:hover {
background-color: $white;
}
.dot_box {
position: absolute;
top: 89em;
left: 52em;
text-align: center;
}
/* Fading animation */
.fade {
-webkit-animation-name: fade;
-webkit-animation-duration: 1.5s;
animation-name: fade;
animation-duration: 1.5s;
}
#-webkit-keyframes fade {
from {
opacity: .4
}
to {
opacity: 1
}
}
#keyframes fade {
from {
opacity: .4
}
to {
opacity: 1
}
}
/* On smaller screens, decrease text size */
#media only screen and (max-width: 300px) {
.prev,
.next,
.text {
font-size: 11px
}
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js"></script>
<div class="slideshow-container">
<!-- Full-width images with number and caption text -->
<div class="mySlides fade">
<div class="numbertext">1 / 5</div>
<img src="https://images.pexels.com/photos/104827/cat-pet-animal-domestic-104827.jpeg?auto=compress&cs=tinysrgb&h=350" />
<div class="text">Providing a safe home for animals since 1988</div>
</div>
<div class="mySlides fade">
<div class="numbertext">2 / 5</div>
<img src="https://images.pexels.com/photos/20787/pexels-photo.jpg?auto=compress&cs=tinysrgb&h=350" />
<div class="text">Providing a safe home for animals since 1988</div>
</div>
<div class="mySlides fade">
<div class="numbertext">3 / 5</div>
<img src="https://images.unsplash.com/photo-1533738699159-d0c68059bb61?ixlib=rb-0.3.5&ixid=eyJhcHBfaWQiOjEyMDd9&s=0bb9888db1d270eab08c77f41120dfca&w=1000&q=80" />
<div class="text">Providing a safe home for animals since 1988</div>
</div>
<div class="mySlides fade">
<div class="numbertext">4 / 5</div>
<img src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/14/Gatto_europeo4.jpg/250px-Gatto_europeo4.jpg" />
<div class="text">Providing a safe home for animals since 1988</div>
</div>
<div class="mySlides fade">
<div class="numbertext">5 / 5</div>
<img src="https://cdn.pixabay.com/photo/2017/02/20/18/03/cat-2083492_960_720.jpg" />
<div class="text">Providing a safe home for animals since 1988</div>
</div>
<!-- Next and previous buttons -->
<a class="prev" onclick="plusSlides(-1)">❮</a>
<a class="next" onclick="plusSlides(1)">❯</a>
</div>
<br>
<!-- The dots/circles -->
<div class="dot_box">
<span class="dot" onclick="currentSlide(1)"></span>
<span class="dot" onclick="currentSlide(2)"></span>
<span class="dot" onclick="currentSlide(3)"></span>
<span class="dot" onclick="currentSlide(4)"></span>
<span class="dot" onclick="currentSlide(5)"></span>
</div>
</div>

try this carousal
owl carousal
downlaod the carousal then add these css files
<link rel="stylesheet" href="owlcarousel/owl.carousel.min.css">
<link rel="stylesheet" href="owlcarousel/owl.theme.default.min.css">
html format
<div class="owl-carousel owl-theme">
<div class="item"><h4>1</h4></div>
<div class="item"><h4>2</h4></div>
<div class="item"><h4>3</h4></div>
<div class="item"><h4>4</h4></div>
<div class="item"><h4>5</h4></div>
<div class="item"><h4>6</h4></div>
<div class="item"><h4>7</h4></div>
<div class="item"><h4>8</h4></div>
<div class="item"><h4>9</h4></div>
<div class="item"><h4>10</h4></div>
<div class="item"><h4>11</h4></div>
<div class="item"><h4>12</h4></div>
</div>
add these js files
<script src="jquery.min.js"></script>
<script src="owlcarousel/owl.carousel.min.js"></script>
now call the carousal
$('.owl-carousel').owlCarousel({
loop:true,
margin:10,
nav:true,
responsive:{
0:{
items:1
},
600:{
items:3
},
1000:{
items:5
}
}
})
now you are done. follow the documentation for more options

Editing JavaScript code for W3School slideshow

I want to add a slideshow from W3School to my site, the problem is I need more than 1 slideshow and the JavaScript code from W3School works for a single slideshow only.
Searching for an answer here on StackOverflow I've found an user who had the same problem as me and we did the same things as well to try to adapt the script to our needs...without sucess obviously.
A user answered posting an edited script that should works for more than a slideshow and I'm trying to use that script for my slideshows but for some reason it works for only 1 slideshow.
Here is the answer I am referring to: https://stackoverflow.com/a/46727534/9276807
And here are my slideshows:
var slideIndex = new Array(2);
slideIndex[0] = 1;
slideIndex[1] = 1;
showSlides(1, 0);
showSlides(1, 1);
function plusSlides(n, slideshownumber) {
slideIndex[slideshownumber] = slideIndex[slideshownumber] + n;
showSlides(slideIndex[slideshownumber], slideshownumber);
}
function currentSlide(n, slideshownumber) {
slideIndex[slideshownumber] = n;
showSlides(slideIndex[slideshownumber], slideshownumber);
}
function showSlides(n, slideshownumber) {
var i;
var slideshowname = "slider" + slideshownumber;
var slides = document.getElementsByName(slideshowname);
if (n > slides.length) {
slideIndex[slideshownumber] = 1;
}
if (n < 1) {
slideIndex[slideshownumber] = slides.length;
}
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
slides[slideIndex[slideshownumber] - 1].style.display = "block";
}
.tooltip {
position: relative;
display: inline-block;
padding: 0;
margin: 0;
cursor: pointer;
color: #000000;
}
.tooltip:hover .info,
.tooltip:focus .info {
visibility: visible;
opacity: 1;
transform: translate3d(0, 0, 0);
}
.info {
box-sizing: border-box;
position: absolute;
bottom: -980px;
left: 95px;
display: block;
background: #FFFFFF;
border: 1px solid #000000;
width: 500px;
font-size: 25px;
line-height: 24px;
text-align: justify;
cursor: text;
visibility: hidden;
opacity: 0;
transform: translate3d(0, -20px, 0);
transition: all .5s ease-out;
}
.info:before {
position: absolute;
content: '';
width: 100%;
height: 14px;
bottom: -14px;
left: 0;
}
.info:after {
position: absolute;
content: '';
width: 10px;
height: 10px;
transform: rotate(45deg);
bottom: 378px;
right: 494px;
margin-left: -5px;
background: #000000;
}
.slideshow-container {
width: 100%;
height: 300px;
position: relative;
margin: 0;
padding: 0;
}
.mySlides {
display: none;
}
.fade {
animation-name: fade;
animation-duration: 1.5s;
}
#keyframes fade {
from {
opacity: .4
}
to {
opacity: 1
}
}
.slideshow-container .imgsl {
position: relative;
width: 100%;
height: 300px;
}
.slideshow-container .cptn {
background-color: rgba(242, 242, 242, 0.5);
color: #FFFFFF;
font-size: 25px;
padding: 8px 0 15px 0;
position: absolute;
bottom: 0;
width: 100%;
text-align: center;
}
.prev,
.next {
cursor: pointer;
position: absolute;
top: 140px;
width: auto;
margin-top: -22px;
padding: 16px;
color: white;
font-weight: bold;
font-size: 18px;
transition: 0.6s ease;
border-radius: 0 3px 3px 0;
}
.next {
right: 0;
border-radius: 3px 0 0 3px;
}
.prev:hover,
.next:hover {
background-color: rgba(242, 242, 242, 0.3);
}
.text {
display: block;
padding: 14px 17px 35px 17px;
color: #8d7200;
}
.more {
display: inline;
position: relative;
bottom: 20px;
left: 215px;
margin: 0;
padding: 3px 10px;
font-family: 'Times New Roman', sans-serif;
text-decoration: none;
color: green;
font-size: 20px;
font-weight: bold;
border: 2px solid green;
border-radius: 5px;
transition: background-color 0.5s, color 0.5s;
}
.more:hover,
.more:focus {
background-color: green;
color: #FFFFFF;
}
<div onclick="void(0);" class="tooltip">Trasimeno
<div class="info">
<div class="slideshow-container">
<div class="mySlides fade" name="slider0">
<img class="imgsl" src="trasimeno.jpg">
<div class="cptn">Passignano Sul Trasimeno</div>
</div>
<div class="mySlides fade" name="slider0">
<img class="imgsl" src="trasimeno2.jpg">
<div class="cptn">Castello del Leone, Castiglione del Lago</div>
</div>
<div class="mySlides fade" name="slider0">
<img class="imgsl" src="trasimeno3.jpg">
<div class="cptn">Castello Borgia, Passignano sul Trasimeno</div>
</div>
<div class="mySlides fade" name="slider0">
<img class="imgsl" src="trasimeno4.jpg">
<div class="cptn">Castello Borgia, Passignano sul Trasimeno</div>
</div>
<a class="prev" onclick="plusSlides(-1,0)">❮</a>
<a class="next" onclick="plusSlides(1,0)">❯</a>
</div>
<script>
currentSlide(1, 0)
</script>
<div class="text">...</div>
<a class="more" href="#" target="_blank">More</a>
</div>
</div>
, il lago di
<div onclick="void(0);" class="tooltip">Piediluco
<div class="info">
<div class="slideshow-container">
<div class="mySlides fade" name="slider1">
<img class="imgsl" src="piediluco.jpg">
<div class="cptn">Lago di Piediluco</div>
</div>
<div class="mySlides fade" name="slider1">
<img class="imgsl" src="piediluco2.jpg">
<div class="cptn">Lago di Piediluco</div>
</div>
<div class="mySlides fade" name="slider1">
<img class="imgsl" src="piediluco3.jpg">
<div class="cptn">Lago di Piediluco</div>
</div>
<div class="mySlides fade" name="slider1">
<img class="imgsl" src="piediluco4.jpg">
<div class="cptn">Lago di Piediluco</div>
</div>
<a class="prev" onclick="plusSlides2(-1,1)">❮</a>
<a class="next" onclick="plusSlides2(1,1)">❯</a>
</div>
<script>
currentSlide(1, 1)
</script>
<div class="text">...</div>
<a class="more" href="#">More</a>
</div>
</div>
Can someone help me to understand where I'm doing wrong?
Thanks in advance!

You are getting the Error:
"Uncaught ReferenceError: currentSlide is not
So, currentSlide() is trying to invoke before it is defined!
Make sure your JS codes (defining function currentSlide(n, slideshownumber){}... ) are executing first before it is invoked.
Also, Invoke plusSlides() not plusSlides2() for Piediluco slide:
<div onclick="void(0);" class="tooltip">Piediluco
<div class="info">
<div class="slideshow-container">
<div class="mySlides fade" name="slider1">
<img class="imgsl" src="piediluco.jpg">
<div class="cptn">Lago di Piediluco</div>
</div>
<div class="mySlides fade" name="slider1">
<img class="imgsl" src="piediluco2.jpg">
<div class="cptn">Lago di Piediluco</div>
</div>
<div class="mySlides fade" name="slider1">
<img class="imgsl" src="piediluco3.jpg">
<div class="cptn">Lago di Piediluco</div>
</div>
<div class="mySlides fade" name="slider1">
<img class="imgsl" src="piediluco4.jpg">
<div class="cptn">Lago di Piediluco</div>
</div>
<a class="prev" onclick="plusSlides(-1,1)">❮</a>
<a class="next" onclick="plusSlides(1,1)">❯</a>
</div>
<script> currentSlide(1,1)</script>
<div class="text">...</div>
<a class="more" href="#">More</a>
</div>
</div>
also change:
<script> $(document).ready(function(){ currentSlide(1,1) })</script>