Develop Reference

how to delete elements with click on window with javascript

I want (setting - content) to be closed every time the user clicks on any part of the window except setting - content.
but not work this code: (document.querySelector('body').addEventListener('click', function(e){....})and signals an error.
How can I do this correctly?
var icon = document.getElementsByClassName("setting--icon");
var panel = document.getElementsByClassName('setting--content');
for (var i = 0; i < icon.length; i++) {
icon[i].onclick = function(){
var setClasses = !this.classList.contains('active');
setClass(icon, 'active', 'remove');
setClass(panel, 'active', 'remove');
if (setClasses) {
this.classList.toggle("active");
this.nextElementSibling.classList.toggle("active");
}
}
}
function setClass(els, className, fnName) {
for (var i = 0; i < els.length; i++) {
els[i].classList[fnName](className);
}
}
document.querySelector('body').addEventListener('click', function(e){
if (!(event.target == 'setting--content')) { panel.classList.remove('active');
this.nextElementSibling.classList.remove("active");
}
})
.setting--icon{
border: 1px solid red;
width:20px;
height:20px;
}
.setting--content {
position: fixed;
left: 50%;
top: -150%;
width: 50%;
height:20px;
margin: 0 auto;
text-align: center;
transition: 0.3s;
min-height: 300px;
padding: 2rem;
transform: translateX(-50%);
border:1px solid green;
}
.setting--content.active {
top: 20%;
}
<form >
<div class="setting--icon">1</div>
<div class="setting--content">
<input type="text" name="address" id="address" placeholder="search …">
</div>
</form>
<div>
<div class="setting--icon">2</div>
<div class="setting--content">
<p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Natus explicabo repellendus quos illo eaque vitae, nostrum id accusantium. Cum est fugiat animi molestiae dicta praesentium repellat ipsa iusto dolore perspiciatis? </p>
</div>
</div>

To check which element has clicked, you can use matches method on HTMLElement, in your body click handler you can use it like this:
event.target.matches('.setting--content');
In your snippet, you are toggling the .setting--content by clicking on .setting--icon, so you should check that target is not .setting--icon like this:
event.target.matches('.setting--icon');
in order to above checkings, you should also check that clicked item is not in the .setting--content, you can do it by storing the current active panel in a variable and by using of contains method, check that clicked item is part of the .setting--content or not. like this:
var icon = document.getElementsByClassName("setting--icon");
var panel = document.getElementsByClassName('setting--content');
var activePanel = null;
for (var i = 0; i < icon.length; i++) {
icon[i].onclick = function() {
var setClasses = !this.classList.contains('active');
setClass(icon, 'active', 'remove');
setClass(panel, 'active', 'remove');
if (setClasses) {
this.classList.toggle("active");
activePanel = this.nextElementSibling;
activePanel.classList.toggle("active");
}
}
}
function setClass(els, className, fnName) {
for (var i = 0; i < els.length; i++) {
els[i].classList[fnName](className);
}
}
document.querySelector('body').addEventListener('click', function(event) {
if (!event.target.matches('.setting--content') &&
!event.target.matches('.setting--icon') &&
activePanel && !activePanel.contains(event.target)) {
setClass(panel, 'active', 'remove');
setClass(icon, 'active', 'remove');
}
})
body {
min-height: 100vh;
}
.setting--icon {
border: 1px solid red;
width: 20px;
height: 20px;
}
.setting--content {
position: fixed;
left: 50%;
top: -200%;
width: 50%;
height: 20px;
margin: 0 auto;
text-align: center;
transition: 0.3s;
min-height: 300px;
padding: 2rem;
transform: translateX(-50%);
border: 1px solid green;
}
.setting--content.active {
top: 20%;
}
<form>
<div class="setting--icon">1</div>
<div class="setting--content">
<input type="text" name="address" id="address" placeholder="search …">
</div>
</form>
<div>
<div class="setting--icon">2</div>
<div class="setting--content">
<p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Natus explicabo repellendus quos illo eaque vitae, nostrum id accusantium. Cum est fugiat animi molestiae dicta praesentium repellat ipsa iusto dolore perspiciatis? </p>
</div>
</div>
BTW, since your .setting--content has fixed display, in below example I added style body{ min-height: 100vh; } in order to prevent body collapssed. and also I changed top property on .setting--content from -150% to -200% to run snippet correctly in preview mode.

Grid items disappearing on smaller screen sizes [duplicate]

This question already has answers here:
Can't scroll to top of flex item that is overflowing container
(12 answers)
Closed 3 years ago.
I am a very new developer attempting to make a presentable photo-gallery-esque type thing to practice a bit. I have been leaning on CSS grid heavily for my layout...and I am pretty proud of what I have thus far.
I have four cards each containing an image thumbnail, a header, and some text. When the user hovers over any card they have the option to "view" the image which brings up a full screen modal. Everything works as I have intended...however...when I decrease the screen size some cards end up disappearing off screen!
I am very new to CSS grid and I have tried just about everything I know at this point. Please help me cross the finish line!
The code below works perfectly if just copy-pasted into the html portion on codepen.io.
Thank you in advance for any help you may offer!
const buttons = document.querySelectorAll('button');
const modal = document.querySelector('.modal');
const image = modal.querySelector('img');
buttons.forEach(button => {
button.addEventListener('click', handleButtonClick);
});
function handleButtonClick(event) {
const card = event.currentTarget.closest('.card');
const chosenImage = card.querySelector('img').src;
image.src = chosenImage;
modal.classList.add('open');
}
document.addEventListener('click', function(event) {
const target = event.target;
const isModal = target.classList[0] === 'modal';
if (isModal) {
modal.classList.remove('open');
}
});
body {
margin: 0;
height: 100vh;
display: grid;
align-content: center;
background: linear-gradient(0deg, rgba(130, 109, 118, 1) 0%, rgba(172, 52, 52, 1) 100%);
}
.wrapper {
display: grid;
grid-gap: 40px;
justify-content: center;
grid-template-columns: repeat(auto-fit, 300px);
grid-template-rows: 450px;
grid-auto-rows: 450px;
}
.card {
border: solid 5px #ac3434;
border-radius: 0.8rem;
overflow: hidden;
background: #3a363670;
display: grid;
grid-gap: 4px;
grid-template-columns: repeat(5, 1fr);
grid-template-rows: repeat(8, 1fr);
}
.img-wrapper {
grid-column: 2 / span 3;
grid-row: 2 / span 3;
display: grid;
}
.img-wrapper img {
height: 100%;
width: 100%;
object-fit: cover;
border: solid 3px #ac3434;
border-radius: 50%;
}
.card-body {
grid-column: 1 / -1;
grid-row: 5 / -1;
padding: 0 10px 0;
font-family: 'Ubuntu', sans-serif;
}
.card-body h2 {
font-family: 'Anton', sans-serif;
}
.card-overlay {
grid-column: 1 / -1;
grid-row: 1 / -1;
background: #ac34347a;
display: grid;
place-items: center center;
transform: translateY(100%);
transition: 0.4s;
}
.card:hover .card-overlay {
transform: translateY(0%);
}
.card-overlay button {
background: none;
color: white;
text-transform: uppercase;
position: relative;
bottom: 78px;
border: solid 3px white;
border-radius: 0.4rem;
font-family: 'Ubuntu', sans-serif;
}
.modal {
height: 100vh;
width: 100vw;
position: fixed;
background: #0000008f;
display: grid;
place-items: center center;
/* Make modal invisible until triggered */
opacity: 0;
/* Makes it so the modal does not log click
events */
pointer-events: none;
}
.open {
/* Displays the modal */
opacity: 1;
pointer-events: all;
}
.modal-inner {
width: 500px;
}
.modal-inner img {
width: 100%;
height: 100%;
object-fit: contain;
}
<div class="wrapper">
<div class="card">
<div class="img-wrapper">
<img src="https://picsum.photos/500">
</div>
<div class="card-body">
<h2>Sunny Walls</h2>
<p>
Lorem ipsum dolor sit amet consectetur adipisicing elit. Enim cupiditate molestias sed ea sit, dolore quos itaque consectetur doloribus at. Dolor accusamus consequuntur perspiciatis! Deserunt?
</p>
</div>
<div class="card-overlay">
<button>View ➜</button>
</div>
</div>
<div class="card">
<div class="img-wrapper">
<img src="https://picsum.photos/500">
</div>
<div class="card-body">
<h2>Kit-the-Kat</h2>
<p>
Lorem ipsum dolor sit, amet consectetur adipisicing elit. Dignissimos quaerat veritatis nobis voluptas minus exercitationem.
</p>
</div>
<div class="card-overlay">
<button>View ➜</button>
</div>
</div>
<div class="card">
<div class="img-wrapper">
<img src="https://picsum.photos/500">
</div>
<div class="card-body">
<h2>Sass in the City</h2>
<p>
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Explicabo accusantium consectetur vel ullam assumenda corrupti id ratione odio, nisi adipisci?
</p>
</div>
<div class="card-overlay">
<button>View ➜</button>
</div>
</div>
<div class="card">
<div class="img-wrapper">
<img src="https://picsum.photos/500">
</div>
<div class="card-body">
<h2>City Things</h2>
<p>
Lorem ipsum dolor sit amet consectetur adipisicing elit. Sint culpa suscipit libero consequatur quod non dolore neque aperiam nihil beatae? Dolores, deserunt.
</p>
</div>
<div class="card-overlay">
<button>View ➜</button>
</div>
</div>
</div>
<div class="modal">
<div class="modal-inner">
<img>
</div>
</div>

You need to use media tags in the css.
Your site is not responsive and when you change screen size it does not resize the components.
https://www.w3schools.com/css/css_rwd_mediaqueries.asp

How to make a hover effects like Wikipedia and Facebook

I am trying to make a hovercard effect using SVG and JavaScript such as Wikipedia and Facebook.
but how to fix the top triangle position when hovering on elements.
I need to fix the triangle position and the hovering action like Wikipedia or facebook.
(NOTE: I have some problem in my css and js link. I am a new programmer, I want to learn more), Sorry for that.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Wikipedia Hover Effects</title>
<style>
.content {
font-family: Segoe UI;
border: 1px solid #ddd;
padding: 30px;
box-sizing: border-box;
line-height: 27px;
}
.v-content-modal {
position: absolute;
background: #fff;
box-shadow: 0 3px 20px 0 #ddd;
width: 350px;
border-top: 3px solid #ddd;
display: none;
box-sizing: border-box;
}
.v-content-modal .modal-title {
background: #f5f5f5;
padding: 0 1.25rem;
font-size: .95rem;
letter-spacing: .03rem;
line-height: 38px;
height: 35px;
border-bottom: 1px solid #ddd;
}
.v-content-modal .modal-content {
padding: 1.75rem 1.25rem;
}
.v-content-modal::before {
content: "";
position: absolute;
top: -23px;
left: 30px;
border: 10px solid transparent;
border-color: transparent transparent #ddd transparent;
}
</style>
</head>
<body>
<div class="content">
Lorem ipsum dolor sit amet One
adipisicing elit. Quisquam, modi neque! Cupiditate itaque vitae aliquid
Two,
pariatur qui sequi minima voluptates voluptatibus quae
nemo! Suscipit Three quibusdam
dignissimos vitae, cum cumque voluptates et hic doloribus dicta, <a href="#" data-title="Four"
data-content="I am the Forth one/" id="info">Four</a> quos,
nostrum in.
</div>
<div class="v-content-modal">
<div class="modal-title">
Title
</div>
<div class="modal-content">
Lorem ipsum dolor sit amet consectetur adipisicing elit. Illo, quam.
</div>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script>
$(function () {
let modal = $(".v-content-modal");
let title = $(".v-content-modal > .modal-title");
let content = $(".v-content-modal > .modal-content");
let btns = document.querySelectorAll("#info");
btns.forEach(btn => {
btn.addEventListener("mousemove", (e) => {
modal.css({
top: 'unset',
right: 'unset',
left: 'unset',
bottom: 'unset'
});
title.html(e.target.getAttribute('data-title'));
content.html(e.target.getAttribute('data-content'));
let pageX, pageY, winWidth, winHeight, elmWidth, elmHeight, width_limit, height_limit = '';
pageX = e.pageX;
pageY = e.pageY;
winWidth = $(window).width();
winHeight = $(window).height();
elmWidth = $(".v-content-modal").width();
elmHeight = $(".v-content-modal").height();
width_limit = winWidth - elmWidth;
height_limit = winHeight - elmHeight;
(pageX > width_limit) ? crossWidth(): normalWidth();
(pageY > height_limit) ? crossHeight(): normalHeight();
function crossWidth() {
modal.css({
right: '5px'
});
}
function normalWidth() {
modal.css({
left: pageX
});
}
function crossHeight() {
modal.css({
bottom: '111px'
});
}
function normalHeight() {
modal.css({
top: e.pageY + 30 + 'px'
});
}
// show when all customization is completed...
modal.show();
});
btn.addEventListener("mouseleave", () => {
modal.hide();
});
});
});
</script>
</body>
</html>
Again,
<div class="content">
Lorem text Mark Info will show here when you hover Dummy text You will show here when you hover on it
</div>
//Define one time only
<div class="modal" style="display: none">
<div class="modal-title"> </div>
<div class="modal-content"> </div>
</div>
when you hover on any <a> it will be show all the info by using the link addr "/wiki/mark" or "/wiki/you"
#we don't need to assign all info every time!

You can use the Bootstrap framework for such an effect. It is very easy!
You connect js and css Bootstrap files, connect the Poper.js (on the same page) and you can just copy the Bootstrap elements to your project and use it as you want.
You can see the element itself at this link. It is called a tooltips.

Scroll down change Text color not work?

My navbar have a title named LOGO ABCD,
I try to set when scrolling down change colour by adding and removing class,
but no idea why not work
LOGO ABCD
A
B
C
D
nav.navbar {
transition: 0.5s;
}
nav.navbar.navbar-default.navbar-fixed-top.navbar-top {
background-color: Black;
}
nav.navbar.navbar-default.navbar-fixed-top.navbar-top a {
color : white;
}
nav.navbar.navbar-default.navbar-fixed-top.navbar-top a:hover {
color : yellow;
}
$(window).scroll(function(evt){
if ($(window).scrollTop()>0)
$(".navbar").removeClass("navbar-top");
else
$(".navbar").addClass("navbar-top");
});
.PJ_title{color:grey;}
.PJ_color{color:red;}
$(window).scroll(function(evt){
if ($(window).scrollTop()>300)
$(".PJ_title").removeClass("PJ_color");
else
$(".PJ_title").addClass("PJ_color");
});

I test and "Test Title" has changed color successfully.
You can run lower snippet and scroll down and see change color. What's the problem?
$(window).scroll(function(evt){
if ($(window).scrollTop()>0)
$(".navbar").removeClass("navbar-top");
else
$(".navbar").addClass("navbar-top");
});
$(window).scroll(function(evt){
if ($(window).scrollTop()>300)
$(".PJ_title").removeClass("PJ_color");
else
$(".PJ_title").addClass("PJ_color");
});
nav.navbar {
transition: 0.5s;
}
nav.navbar.navbar-default.navbar-fixed-top.navbar-top {
background-color: Black;
}
nav.navbar.navbar-default.navbar-fixed-top.navbar-top a {
color : white;
}
nav.navbar.navbar-default.navbar-fixed-top.navbar-top a:hover {
color : yellow;
}
.PJ_title{color:grey;}
.PJ_color{color:red;}
.PJ_title{ position: fixed; }
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
</head>
<body style='height: 1000px'>
<nav class='navbar navbar-default navbar-fixed-top navbar-top'>
<a>Test</a>
</nav>
<h1 class='PJ_title'>Test Title</h1>
</body>
</html>

Here's how you can do this. In the scroll function use, this.scrollY. Based on the value, add or remove classes as you see fit.
$(document).ready(function() {
$(window).scroll(function(evt) {
var scrollPos = this.scrollY;
if (scrollPos > 200) {
$(".navbar").removeClass("navbar-green");
$(".navbar").addClass("navbar-blue");
} else {
$(".navbar").addClass("navbar-green");
$(".navbar").removeClass("navbar-blue");
}
});
});
nav.navbar {
background-color: #ccc;
transition: all 0.5s ease-out;
}
nav.navbar-fixed-top {
position: fixed;
top: 0;
left: 0;
width: 100%;
}
.extra-long {
height: 200vw;
}
nav.navbar-green {
background-color: green;
}
nav.navbar-blue {
background-color: blue
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="extra-long">
<nav class="navbar navbar-fixed-top">
<p>LOGO ABCD</p>
<p>A</p>
</nav>
</div>

Here's a version of your code cleaned up that works. You'll have to change the color as needed:
const w = $(window);
const header = $('#main-header');
w.on('scroll', function() {
if(w.scrollTop() > 0) {
header.addClass('header-secondary');
} else {
header.removeClass('header-secondary');
}
});
html {
height: 100%;
}
body {
margin: 0;
font-family: sans-serif;
height: 100%;
}
header {
width: 100%;
display: flex;
position: fixed;
align-items: center;
background-color: #ccc;
height: 50px;
transition: background-color ease .3s;
}
header nav {
margin-left: auto;
padding-right: 15px;
}
header nav a {
text-decoration: none;
}
#logo {
font-weight: 700;
padding-left: 15px;
}
.header-secondary {
background-color: darkblue;
color: #fff;
}
.header-secondary nav a {
color: #fff;
}
main {
padding: 65px 15px 0;
background-color: salmon;
height: 200%;
}
main p {
margin: 0;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<header id="main-header">
<p id="logo">LOGO ABCD</p>
<nav>
item
item
item
</nav>
</header>
<main>
<p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Officiis adipisci totam odit natus voluptates ducimus impedit provident eum quia asperiores vitae neque ullam deserunt enim dolore minima, cum, perferendis et laborum. Magni, odit. Ducimus reiciendis illo assumenda dignissimos? Quidem eligendi molestiae atque mollitia, exercitationem officia. Debitis incidunt voluptas explicabo aliquam.</p>
</main>

Change line-clamp style

I'm creating a testimonials page for my site, and some of the testimonials I have are rather long. As such I want to cut out anything longer than 3 lines.
To read the rest, the user clicks a button and the text expands to reveal the rest.
I've managed to do the above with line-clamp, however I'd like to have the ... clickable and styled with a different text. Is this possible?
I couldn't find a way to do that, so I tried a workaround. First I find out which elements have overflow so the [Read More] can be inserted. However it gets inserted at the end of the text, and not before the overflow.
I'm clueless as to how to solve this.
Desired result:
Current result (jsfiddle)
HTML
<div class="testimonial container-fluid">
<div class="col-xs-3 rating-container">
<div>
<div class="star"></div>
<div class="star"></div>
<div class="star"></div>
<div class="star"></div>
</div>
</div>
<div class="col-xs-9">
<div class="title">Title</div>
<div class="content">Lorem ipsum dolor sit amet, vero essent gubergren ad pro, regione epicuri contentiones ea mea. Decore omnium id vim, pro et malis molestie, et porro nostro vis. Ei libris debitis reprehendunt est. Te per delenit scaevola scripserit. Partem erroribus rationibus ea vel, nihil euismod ei vim.
His sonet antiopam cotidieque ea, eu unum melius conclusionemque his. Ferri iisque sanctus pri ei. Ut ius tantas nonumy intellegam. Et per solum aliquam, melius elaboraret at qui.</div>
<div class="name_loc" id="demo">Name, London</div>
</div>
</div>
CSS
.testimonial {
width: 920px;
display: -webkit-box;
background-color: #EFEFEF;
color: #333;
padding: 8px;
margin: 0 0 20px;
border: 3px solid #506790;
}
.testimonial:nth-of-type(even) {
background-color: #EFEFEF;
}
.testimonial .rating-container {
height: 144px;
display: table;
}
.testimonial .rating-container > div {
display: table-cell;
vertical-align: middle;
}
.testimonial .star {
width: 32px;
height: 32px;
display: inline-block;
background-repeat: no-repeat;
background-image: url('http://www.timelinecoverbanner.com/cliparts/wp-content/digital-scrapbooking/lemon-star-md1.png');
background-size: cover;
}
.testimonial .title {
font-size: 18pt;
text-align: left;
font-weight: bold;
}
.testimonial .content {
-webkit-box-orient: vertical;
display: -webkit-box;
margin: 5px 0 10px;
font-size: 12pt;
text-align: left;
overflow: hidden;
height: 68px;
}
.testimonial .name_loc {
font-style: italic;
font-size: 12pt;
text-align: right;
}
JS
$('#demo').on('click', function() {
var t = $(this).closest('.testimonial');
var c = t.find('.content');
var h3 = c[0].scrollHeight;
c.animate({'height':h3},500);
});
$('.testimonial').each(function() {
var c = $(this).find('.content');
if (c.height() < c[0].scrollHeight) {
c.css('text-overflow', 'ellipsis');
//also tried:
c.css('line-clamp', '3');
}
});

You could do this with the ::after pseudo-element. I was playing with your fiddle and it seemed to work.
First the .content class needs to be positioned relative. Then add two new CSS classes:
.testimonial .content.collapsed {
/* styles removed from .content */
overflow: hidden;
height: 68px;
}
.testimonial .content.collapsed::after {
display: inline-block;
content: "...";
position: absolute;
bottom: 0;
right: 5px;
}
You could add the click handler to the pseudo element in the JS (I didn't try this part), and then remove the "collapsed" class after the click. You could also style the pseudo element any way you want, or change the content to "Read more..." or whatever.

Try fiddling with your revised JsFiddle. It uses:
$('.testimonial').on(
'click',
'.content',
function(e) {
if (this.scrollHeight > this.offsetHeight) {
$(this).removeClass('clipped')
.addClass('unclipped')
.css('height', this.scrollHeight+'px');
} else {
$(this).removeClass('unclipped')
.addClass('clipped')
.css('height', '');
}
}
);
and 2 extra css-classes: clipped and unclipped:
.clipped:after {
position: absolute;
content: '>';
top: 2.9em;
color: red;
font-weight: bold;
cursor: pointer;
}
.unclipped:after {
position: absolute;
content: '<';
top: 2.9em;
color: green;
font-weight: bold;
cursor: pointer;
}

What about this: http://jsfiddle.net/6nb0wwc3/1/
I added a "readme" div, which on click, shows the complete text.
<div class="name_loc" id="demo">Name, London</div>
<div class="readmore">Read more</div>
$('.readmore').each(function() {
$(this).click( function() {
$(this).parent().find('.content').css('height','100%');
$(this).hide();
});
});
Hope it helps