Why particles-js does not work correctly? - javascript

First I see the content, then I see the particles-js. I want to make sure that I see the particles-js and simultaneously at the same time.
I use materialize CSS
Code:
<div class="page-wrapper"> <div class="content">.... </div> </div>
<div id="particles-js"> </div>
<!-- Particles JS -->
<script > .... </script>

Seems like your styles are broken or missing
particlesJS.load('particles-js', 'https://cdn.jsdelivr.net/npm/particles.js#2.0.0/demo/particles.json', function() {
//callback
});
html {
width: 100%;
height: 100%;
}
body {
background-color: black;
display: flex;
width: 100%;
height: 100%;
justify-content: center;
align-items: center;
}
#particles-js {
position: absolute;
left: 0;
top: 0;
width: 100%;
height: 100%;
z-index: 0;
}
.my-content {
z-index: 1;
width: 150px;
height: 150px;
background-color: white;
}
<script src="https://cdn.jsdelivr.net/npm/particles.js#2.0.0/particles.min.js"></script>
<div class="my-content">
my content
</div>
<div id="particles-js"></div>

Related

How to show an iframe pop-up on top of parent?

I have an iframe that acts as page footer. This iframe shows a pop up (the iframe has a button and it contains the pop up) but when I use it on the page the pop-up gets behind the containing div.
How can I show part of the pop up in the parent.
Updated
Now with some code :
iframe has a pop up:
https://codepen.io/oscarryz/pen/MNdjGm
<div class="page">
<div class="footer">
<button id="showpopup">Show popup</button>
<div id="infobox" class="hidden">PopUp</div>
</div>
</div>
And content uses that iframe as pop up
https://codepen.io/oscarryz/pen/rXgvNM
<div class="page">
<div class="content">Content</div>
<div class="footer">
<iframe src="https://codepen.io/oscarryz/full/MNdjGm" style='border:0;width:100%;height:500px;overflow:hidden' frameborder="0"></iframe>
</div>
</div>
This is basically the same code in this answer but using a div as pop up inside the iframe
The keyword here is stacking context.
Look at this minified example of your question, which should work as expected:
(please run the snippets in full page mode)
document.getElementById('showpopup').addEventListener('click',function() {
document.getElementById('infobox').classList.remove('hidden');
});
body {
padding: 0;
margin: 0;
text-align: center;
}
.page {
height: 100vh;
width: 100vw;
display: flex;
flex-direction: column;
}
.content {
height: 80%;
width: 100%;
background: #eee;
}
.footer {
height: 20%;
width: 100%;
background: #444;
}
#showpopup {
margin: 3em;
}
#infobox {
height: 200px;
width: 80%;
position: absolute;
bottom: 15%;
left: 10%;
}
.hidden {
display: none;
}
<div class="page">
<div class="content">Page Content</div>
<div class="footer">
<button id="showpopup">Show iframe</button>
</div>
<iframe id="infobox" class="hidden" src="https://bing.com"></iframe>
</div>
Now, the difference to the page you have is either, that your page uses z-index for the main content, or absolute positioning of other elements and the iframe. If the iframe has a lower z-index or is added to the document before other absolutely positioned element, it will get hidden behind it:
document.getElementById('showpopup').addEventListener('click',function() {
document.getElementById('infobox').classList.remove('hidden');
});
body {
padding: 0;
margin: 0;
text-align: center;
}
.page {
height: 100vh;
width: 100vw;
display: flex;
flex-direction: column;
}
.content {
height: 80%;
width: 100%;
background: #eee;
z-index: 99; // PROBLEM CAUSE A
position: absolute; // PROBLEM CAUSE B
}
.footer {
height: 20%;
width: 100%;
background: #444;
position: absolute;
bottom: 0;
}
#showpopup {
margin: 3em;
}
#infobox {
height: 200px;
width: 80%;
position: absolute;
bottom: 15%;
left: 10%;
}
.hidden {
display: none;
}
<div class="page">
<div class="footer">
<button id="showpopup">Show iframe</button>
</div>
<iframe id="infobox" class="hidden" src="https://bing.com"></iframe>
<div class="content">Page Content</div>
</div>
To solve this, you either need to move your iframe down in the document, or give it a higher z-index itself.

Scroll Horizontally on hover only runs once?

I'm trying to make a simple scroll left and right div on hover. I'm really not sure what I'm doing wrong, I hover, but it only moves the 50 specified in the if statement. Do I need to add some kind of loop while I'm still hovering? Any help would be greatly appreciated.
Basically, I want to be able to hover over the two black boxes right and left and while it's hovered move right or left, when I remove the mouse it should stop.
$("#left").hover(function() {
var leftPos = $('#wrapper').scrollLeft();
$("#wrapper").animate({
scrollLeft: leftPos - 50
}, 1);
});
$("#right").hover(function() {
var leftPos = $('#wrapper').scrollLeft();
$("#wrapper").animate({
scrollLeft: leftPos + 50
}, 1);
});
html,
body {
background-color: #eeeeee;
margin: 0;
overflow-x: scroll;
overflow-y: hidden;
}
#left {
position: absolute;
width: 10vw;
height: 100vh;
top: 0;
left: 0;
z-index: 1;
background-color: black;
}
#right {
position: absolute;
width: 10vw;
height: 100vh;
top: 0;
right: 0;
z-index: 1;
background-color: black;
}
#wrapper {
width: 100%;
height: 100vh;
white-space: nowrap;
overflow-y: hidden;
overflow-x: scroll;
}
#inner_wrap {
width: 4000px;
height: 100vh;
align-items: center;
display: flex;
}
#firstcontent {
align-items: center;
display: flex;
vertical-align: middle;
color: white;
float: left;
margin-left: 20vw;
width: 400px;
height: 250px;
background-color: #2d2d2d;
}
.thumbone {
width: 400px;
height: 250px;
background-color: lightgrey;
display: inline-block;
}
.thumbtwo {
width: 400px;
height: 250px;
background-color: grey;
display: inline-block;
}
<script src="https://corporate3.bdjobs.com/js/jquery.min.js"></script>
<div id="left"></div>
<div id="right"></div>
<div id="wrapper">
<div id="inner_wrap">
<div id="firstcontent">hover or scroll</div>
<div class="thumbone"></div>
<div class="thumbtwo"></div>
<div class="thumbone"></div>
<div class="thumbtwo"></div>
<div class="thumbone"></div>
<div class="thumbtwo"></div>
<div class="thumbone"></div>
<div class="thumbtwo"></div>
</div>
</div>
Link to script
jsfiddle
[also a side note, why does this work only on jsfiddle and no where else?]
Your issue is because the mouseenter and mouseleave events (which underpin the hover() logic) only fire once, when the mouse enters/leaves the targeted element. If you want to repeatedly perform an action whilst the element is over those elements you'll need to implement your own logic.
To achieve this you can use an interval within the mouseenter handler of the hover() to repeatedly shift the scroll position of the required element. Then in the mouseleave you can clear that timer.
Also note that you can DRY up your code by using a common class on both elements along with a data attribute to govern the movement increment per tick of the interval. Try this:
var timer;
$('.hover-scroll').hover(function() {
var increment = $(this).data('pos');
timer = setInterval(function() {
var leftPos = $("#wrapper").scrollLeft();
$("#wrapper").animate({
scrollLeft: leftPos + increment
}, 1);
}, 50);
}, function() {
clearInterval(timer);
});
html,
body {
background-color: #eeeeee;
margin: 0;
overflow-x: scroll;
overflow-y: hidden;
}
#left {
position: absolute;
width: 10vw;
height: 100vh;
top: 0;
left: 0;
z-index: 1;
background-color: black;
}
#right {
position: absolute;
width: 10vw;
height: 100vh;
top: 0;
right: 0;
z-index: 1;
background-color: black;
}
#wrapper {
width: 100%;
height: 100vh;
white-space: nowrap;
overflow-y: hidden;
overflow-x: scroll;
}
#inner_wrap {
width: 4000px;
height: 100vh;
align-items: center;
display: flex;
}
#firstcontent {
align-items: center;
display: flex;
vertical-align: middle;
color: white;
float: left;
margin-left: 20vw;
width: 400px;
height: 250px;
background-color: #2d2d2d;
}
.thumbone {
width: 400px;
height: 250px;
background-color: lightgrey;
display: inline-block;
}
.thumbtwo {
width: 400px;
height: 250px;
background-color: grey;
display: inline-block;
}
<script src="https://corporate3.bdjobs.com/js/jquery.min.js"></script>
<div id="left" class="hover-scroll" data-pos="-50"></div>
<div id="right" class="hover-scroll" data-pos="50"></div>
<div id="wrapper">
<div id="inner_wrap">
<div id="firstcontent">hover or scroll</div>
<div class="thumbone"></div>
<div class="thumbtwo"></div>
<div class="thumbone"></div>
<div class="thumbtwo"></div>
<div class="thumbone"></div>
<div class="thumbtwo"></div>
<div class="thumbone"></div>
<div class="thumbtwo"></div>
</div>
</div>
If you want to speed up or slow down the scroll, change the delay on the interval

How to position text and Div on top of eachother and align them in center?

So I can't figure this out.
I'm trying to get a red vertical box to display in middle of page. I've set the div's margin to auto.
And then there's another div that holds a centered text.
Setting margin auto on both.
They are both stacking on top of eachother fine in middle of page.
However I want it to be responsive to all heights. Right now it's just responsive to the x-axis and not the height.
HTML & CSS:
.parentDiv {
position: relative;
width: 250px;
height: 450px;
margin: auto;
}
#RedBox {
width: 250px;
height: 450px;
background-color: #FF0000;
margin: auto;
}
#CSText {
position: absolute;
top: 45%;
width: 250px;
color: black;
text-align: center;
}
<div class="parentDiv" style="margin-top: auto;">
<div id="CSText" class="TextAlignCenter">
</div>
<div id="RedBox">
</div>
</div>
flexbox would be a great solution to this:
.container {
height: 100vh;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
}
.red-box {
background-color: red;
padding: 100px;
color: white;
}
<div class="container">
<div class="red-box">text</div>
</div>
I did this for you.
https://jsfiddle.net/95ssv6q1/
HTML
<div class="parentDiv">
<div class="inner">
<div id="RedBox">
</div>
</div>
</div>
CSS
.parentDiv {
display:table;
width: 100%;
height: 100%;
position: absolute;
}
.inner{
display: table-cell;
vertical-align:middle;
}
#RedBox {
width: 250px;
height: 450px;
background-color: #FF0000;
margin: auto;
}

Show / hide element inside parent div in jQuery

I want to be able to display an overly of the player name and have the entire box linked to his profile. I am trying to achieve this in jQuery but haven't had much luck. The a tag has styling on it so it extends to 100% of the width and height of the div.
It doesn't seem to be working - I need a second pair of eyes on as I'm probably missing something obvious.
I have this HTML structure
<div class="player">
<a href="/player?PlayGuid=123">
<div class="player__name">
<h4>Player Name</h4>
</div>
</a>
<div class="player__thumbnail">
<img src="player.jpg" alt="player desc" />
</div>
</div>
and this CSS
.player {
position: relative;
z-index: 1;
max-width: 250px;
width: 250px;
height: 250px;
max-height: 250px;
text-align: center;
cursor: pointer;
}
.player a {
display: none;
height: 100%;
max-width: 100%;
z-index: 12;
}
.player__name {
position: absolute;
top: 0;
left: 0;
background-color: rgba(44, 42, 102, 0.6);
color: #FFFFFF;
width: 100%;
height: 100%;
z-index: 10;
}
.player__thumbnail {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: 3;
}
.player__thumbnail img {
width: 100%;
max-width: 100%;
height: auto;
}
and the jQuery
$(document).ready(function(){
$('.player').hover(
function () {
$(this).closest('a').show();
},
function () {
$(this).closest('a').hide();
}
);
});
You don't need javascript to do that...just adjust the positioning.
.player {
position: relative;
z-index: 1;
max-width: 250px;
width: 250px;
height: 250px;
max-height: 250px;
text-align: center;
cursor: pointer;
}
.player a {
display: none;
position: absolute;
height: 100%;
width: 100%;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: rgba(44, 42, 102, 0.6);
color: #FFFFFF;
}
.player:hover a {
display: block;
}
<div class="player">
<a href="/player?PlayGuid=123">
<div class="player__name">
<h4>Player Name</h4>
</div>
</a>
<div class="player__thumbnail">
<img src="http://www.fillmurray.com/250/250" alt="player desc" />
</div>
</div>
$.closest() searches through an element's parents, not its children. You should probably use $('a', this) to select the child <a> element.
Change html to
<div class="player">
<a id="name" href="/player?PlayGuid=123">
<div class="player__name">
<h4>Player Name</h4>
</div>
</a>
<div class="player__thumbnail">
<img src="player.jpg" alt="player desc" />
</div>
</div>
And Javascript to
$(document).ready(function() {
$('.player').hover(function() {
$('#name').toggle('display');
});
});
See if this helps you have tried to use your code to make it work.(For some reason this works for the first time. U got to re run this)
$(document).ready(function(){
$('.player').hover(
function () {
$(this).append($("a").html());
},
function () {
var ss = $(".player__name");
ss.remove();
}
);
});
.player {
position: relative;
z-index: 1;
max-width: 250px;
width: 250px;
height: 250px;
max-height: 250px;
text-align: center;
cursor: pointer;
}
.player a {
display: none;
height: 100%;
max-width: 100%;
z-index: 12;
}
.player__name {
position: absolute;
top: 0;
left: 0;
background-color: rgba(44, 42, 102, 0.6);
color: #FFFFFF;
width: 100%;
height: 100%;
z-index: 10;
}
.player__thumbnail {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: 3;
}
.player__thumbnail img {
width: 100%;
max-width: 100%;
height: auto;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.2.3/jquery.min.js"></script>
<div class="player">
<a href="/player?PlayGuid=123" id="play1">
<div class="player__name">
<h4>Player Name</h4>
</div>
</a>
<div class="player__thumbnail">
<img src="player.jpg" alt="player desc" />
</div>
</div>

Website with a tricky structure with JS

Here is my tricky problem. I'm trying to do this:
http://www.hostingpics.net/viewer.php?id=767312test.gif
(More clear than an explication I think).
My structure :
<header></header>
<div class="section">
<div class="text"></div>
<div class="content"></div>
<div class="img"><img src="img1.png"/></div>
</div>
<div class="section">
<div class="text"></div>
<div class="content"></div>
<div class="img"><img src="img2.png"/></div>
</div>
<div class="section">
<div class="text"></div>
<div class="content"></div>
<div class="img"><img src="img3.png"/></div>
</div>
<footer></footer>
Important informations :
"Header" is fix
"Content" fit to the screen less the height of header
Every "section" are the same but with different content
When the image comes to an end, the "content" div is unfixed.
I am using "section" for implementing a next and previous button in the header (with anchors).
My problem is the scrolling part. I am really lost when I try to fix the "content" div. I don't know how to fix everything except the scroll of the image in the active "img" div when the active "content" div hits the header. (Everyone follows? Look here : http://www.hostingpics.net/viewer.php?id=767312test.gif
For the scrolling part in the "img" div, I was thinking use a sort of "overflow:scroll" but the scrollbar is really awful.
I don't know if it's enough clear. If there is any problem I can complete my problem. I am not very comfortable with complex structures in html with JS.
Thanks for your help!
This is pretty close to what you're asking for (using CSS only).
This relies on the fact that the backgrounds are solid colors. It uses various specifically-defined height properties as well that match some padding properties.
The .top-bar and .bottom-bar elements can probably be changed to pseudo elements if you don't want the extra HTML.
HTML:
<header>Header</header>
<div class="top-bar"></div>
<div class="bottom-bar"></div>
<div class="section">
<div class="text">Section 1 Text</div>
<div class="content">
<div class="img"><img src="http://placekitten.com/100/1000"/></div>
</div>
</div>
<div class="section">
<div class="text">Section 2 Text</div>
<div class="content">
<div class="img"><img src="http://placekitten.com/200/2000"/></div>
</div>
</div>
<div class="section">
<div class="text">Section 3 Text</div>
<div class="content">
<div class="img"><img src="http://placekitten.com/300/3000"/></div>
</div>
</div>
<footer>Footer</footer>
CSS:
body {
margin: 0;
padding: 100px 0 0;
}
header {
background-color: red;
height: 100px;
position: fixed;
top: 0;
width: 100%;
z-index: 10;
}
footer {
background-color: blue;
height: 100px;
}
.section {
min-height: 400px;
}
.text {
background-color: aqua;
height: 50px;
}
.content {
background-color: green;
min-height: 100%;
padding: 40px 0;
position: relative;
}
.img {
background-color: yellow;
min-height: 70%;
margin: 0 auto;
padding: 40px 0;
text-align: center;
width: 80%;
}
.img > img {
vertical-align: middle;
}
.top-bar, .bottom-bar {
background-color: green;
height: 40px;
position: fixed;
width: 100%;
z-index: 5;
}
.top-bar {
top: 100px;
}
.bottom-bar {
bottom: 0;
}
footer, .text {
position: relative;
z-index: 6;
}
JSFiddle here.
For an almost completely correct solution, here is one with some jQuery involved.
New CSS:
body {
margin: 0;
padding: 100px 0 0;
}
header {
background-color: red;
height: 100px;
position: fixed;
top: 0;
width: 100%;
z-index: 10;
}
footer {
background-color: blue;
height: 100px;
}
.section {
min-height: 400px;
}
.text {
background-color: aqua;
height: 50px;
}
.content {
background-color: green;
min-height: 100%;
padding: 40px 0;
position: relative;
}
.img {
background-color: yellow;
min-height: 70%;
margin: 0 auto;
padding: 40px 0;
text-align: center;
width: 80%;
}
.img > img {
vertical-align: middle;
}
.top-bar, .bottom-bar {
background-color: green;
height: 40px;
position: fixed;
width: 100%;
}
.top-bar {
top: 100px;
z-index: 5;
}
.bottom-bar {
bottom: 0;
z-index: 7;
}
footer, .text {
position: relative;
z-index: 8;
}
.img-fix {
bottom: 40px;
height: 400px;
overflow: hidden;
position: absolute;
width: 100%;
z-index: 6;
}
jQuery:
$(document).ready(function(){
$(".content").each(function(){
$(this).append($(this).html());
$(this).find(".img + .img").wrap("<div class='img-fix'></div>");
});
$(window).resize(function() {
resizeImgFix();
});
resizeImgFix();
});
function resizeImgFix() {
$(".img-fix").height($(window).height() - $("header").height() - $(".top-bar").height() - $(".bottom-bar").height());
$(".img-fix").each(function(){
$(this).scrollTop($(this).prop("scrollHeight"));
});
}
JSFiddle here.
Note: It duplicates the .img element and its children. This could be memory intensive depending. However, it does make it work as intended without any visual lag or artifacts.

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