I've been trying to make use of html2canvas to take a screenshot of a element
I noticed an image inside the div element that uses the object-fit property becomes stretched after the html2canvas screenshot
Is there a walk around for this. Here is my code
<script>window.addEventListener('load', function () {
var bigCanvas = $("<div>").appendTo('body');
var scaledElement = $("#Element").clone()
.css({
'transform': 'scale(1,1)',
'transform-origin': '0 0'
})
.appendTo(bigCanvas);
var oldWidth = scaledElement.width();
var oldHeight = scaledElement.height();
var newWidth = oldWidth * 1;
var newHeight = oldHeight * 1;
bigCanvas.css({
'width': newWidth,
'height': newHeight
})
html2canvas(bigCanvas, {
onrendered: function(canvasq) {
var image = document.getElementById('image');
image.style.width='300px';
image.src = canvasq.toDataURL();
bigCanvas.remove() ;
}
});}) </script>
While html goes as
<div id="Element" class="container">
<div class="bg-light p-3 text-center">
<h3>iPhone 12 Pro Max</h3>
<div class="m-2 shadow" style="height:400px;width:100%;">
<img src="img/agency.jpeg" style="object-fit:cover;height:100%;width:100%;" />
</div>
<h4>Now available for free</h4>
</div>
</div>
<div class="container" style="width:100%;border:2px solid black;overflow:hidden">
<img src="" id="image" style="max-width:100%;"/>
</div>
I had the same issue, unfortunally it seems that html2cavas doesn't support the object-fit property but i resolve with flexbox and the result it's good, it's important to set the width and height for parent node:
.logo-preview-inner {
height: 200px;
width: 200px;
border-radius: 50%;
border: solid 1px #e6e6e6;
margin: 0 auto;
overflow: hidden;
display: flex;
align-items: center;
justify-content: center;
position: relative;
img {
width: 100%;
}
where the class .logo-preview-inner is the parent node and the image is the child
i hope to help you!
Sorry for such a dumb question for you, I've got a list of elements with overflow-y:auto, like this:
I'd like to make them stick for just a little bit when I'm scrolling and pop off when the next one is pushing it from the bottom.
It's to avoid this which IMO doesn't look very good.
I know I have to use position:sticky but I don't know how to achieve this without the elements staying there definitely as I scroll down
Please excuse the lengthy code, as the HTML and parts of the CSS were just meant to make things stand out.
The actual core of it is the JavaScript code, along with the parts of CSS I didn't comment on.
Obviously the code's readability can be improved; However I've intentionally left the original functions, rather than writing custom ones (e.g. makeTopElement(element), or getTopPosition(element)), as the code snippet has already become pretty long vertically.
const items = document.getElementsByClassName('item');
const itemHeight = items[0].getBoundingClientRect().height;
let currentTopIndex = 0;
let prevY = 0;
document.onscroll = function() {
let currY = window.pageYOffset;
// Scrolling down
if (currY > prevY &&
currentTopIndex < items.length - 1 &&
items[currentTopIndex + 1].getBoundingClientRect().top < itemHeight) {
items[currentTopIndex].classList.remove('top');
items[currentTopIndex].style.top = 'auto';
items[currentTopIndex].style.bottom = 0;
currentTopIndex ++;
items[currentTopIndex].classList.add('top');
}
// Scrolling up
else if (currY < prevY &&
currentTopIndex > 0 &&
items[currentTopIndex - 1].getBoundingClientRect().top > 0) {
items[currentTopIndex].classList.remove('top');
currentTopIndex --;
items[currentTopIndex].classList.add('top');
items[currentTopIndex].style.top = 0;
items[currentTopIndex].style.bottom = 'auto';
}
prevY = currY;
};
.wrapper {
height: 500px;
}
.itemWrapper {
height: 100px;
position: relative;
}
.item {
position: absolute;
/* These properties are here just to make things pretty */
background-color: MintCream;
padding: 10px;
text-align: center;
border: 1px solid #00e673;
width: 100%;
}
.top {
position: sticky;
top: 0;
/* These properties are here just to make things pretty */
background-color: red;
border-color: #990000;
}
<div class="wrapper">
<div class="itemWrapper">
<div class="item top">
first
</div>
</div>
<div class="itemWrapper">
<div class="item">
second
</div>
</div>
<div class="itemWrapper">
<div class="item">
third
</div>
</div>
</div>
to make this you would use css-snap:
for the list class: add the following css:
.parent {
overflow: scroll;
height: 200px;
scroll-snap-type: y mandatory;
scroll-snap-points-y: repeat(50px);
}
.child {
height: 50px;
margin: 10px;
scroll-snap-align: start;
}
replace:
.parent with your list class,
height: 200px with your list height, notice that you should give it specific height,
scroll-snap-points-y: repeat(50px) replace 50px with height of children, in my case i used 50px because child class has height of 50px.
.child with your element class
height: 50px height of children element.
.parent {
overflow: scroll;
height: 200px;
scroll-snap-type: y mandatory;
scroll-snap-points-y: repeat(50px);
}
.child {
height: 50px;
margin: 10px;
scroll-snap-align: start;
}
.child:nth-child(even) {
background-color: #ccc;
}
.child:nth-child(odd) {
background-color: #ddd;
}
<div class="parent">
<div class="child"><h1>testing</h1></div>
<div class="child"><h1>testing</h1></div>
<div class="child"><h1>testing</h1></div>
<div class="child"><h1>testing</h1></div>
<div class="child"><h1>testing</h1></div>
<div class="child"><h1>testing</h1></div>
<div class="child"><h1>testing</h1></div>
<div class="child"><h1>testing</h1></div>
<div class="child"><h1>testing</h1></div>
<div class="child"><h1>testing</h1></div>
<div class="child"><h1>testing</h1></div>
<div class="child"><h1>testing</h1></div>
<div class="child"><h1>testing</h1></div>
<div class="child"><h1>testing</h1></div>
<div class="child"><h1>testing</h1></div>
<div class="child"><h1>testing</h1></div>
</div>
I found posts and online articles on how to do something like this but most examples are not in plain JavaScript. So this script works almost perfectly if all the sections are the same height for example 220px. So I thought I was getting closer in having this script working how I want it to work like overtime but then I realize
it had flaws when I decided to change the sections height and play around with the code more to see if it had any flaws that I was unaware of so basically this script is designed to output the name
of the sections that are visible but it is not showing the correct output for example if section 1 is the only one that is visible in the div it will say section-1 if multiple sections are visible it will say for example section-1,section-2 etc. Basically it should work like this regardless of the sections height
I know I have to change the code or altered it but I'm getting more confused the more I play around with it so how can I pull this off so I can always have the correct output? If I have to change my code completely to be able to do this then I don't mind.
This is my code
document.addEventListener('DOMContentLoaded',function(){
document.querySelector('#building').addEventListener('scroll',whichSectionsAreInSight);
function whichSectionsAreInSight(){
var building= document.querySelector('#building');
var top = building.scrollTop;
var bottom = top+building.offsetHeight;
var arr = [];
Array.prototype.forEach.call(
building.querySelectorAll('#building .sections'),
function(sections){
if ((sections.offsetTop < top && top <sections.offsetTop+sections.offsetHeight) || (sections.offsetTop < bottom && bottom < sections.offsetTop+sections.offsetHeight)){
arr.push(sections.id);
}
}
);
document.querySelector('#status').innerHTML = arr.join(',')
}
whichSectionsAreInSight();
});
h1{
margin: 0;
text-align: center;
}
#building{
background-color: gray;
height: 200px;
width: 200px;
overflow: auto;
}
.sections{
height: 80px;
width: 100%;
}
#section-1{
background-color: dodgerblue;
}
#section-2{
background-color: gold;
}
#section-3{
background-color: red;
}
#section-4{
background-color: gray;
height: 220px;
}
<p id='status'></p>
<div id='building'>
<div id='section-1' class='sections'><h1>Section 1</h1></div>
<div id='section-2' class='sections'><h1>Section 2</h1></div>
<div id='section-3' class='sections'><h1>Section 3</h1></div>
<div id='section-4' class='sections'><h1>Section 4</h1></div>
</div>
You were pretty close!
First off, you need to set the parent element to position:relative otherwise the parent that is being measured against is the document.
Also, the algorithm is simpler than what you had. Just make sure that the top of the element is less than the bottom of the parent, and the bottom of the element is greater than the top of the parent.
In your case this is offsetTop < bottom and offsetTop + offsetHeight > top
document.addEventListener('DOMContentLoaded', function() {
document.querySelector('#building').addEventListener('scroll', whichSectionsAreInSight);
function whichSectionsAreInSight() {
var building = document.querySelector('#building');
var top = building.scrollTop;
var bottom = top + building.offsetHeight;
var arr = [];
Array.prototype.forEach.call(
building.querySelectorAll('#building .sections'),
function(section) {
if (section.offsetTop < bottom && section.offsetTop + section.offsetHeight > top) {
arr.push(section.id);
}
}
);
document.querySelector('#status').innerHTML = arr.join(',')
}
whichSectionsAreInSight();
});
h1 {
margin: 0;
text-align: center;
}
#building {
background-color: gray;
height: 200px;
width: 200px;
overflow: auto;
position: relative;
}
.sections {
height: 80px;
width: 100%;
}
#section-1 {
background-color: dodgerblue;
}
#section-2 {
background-color: gold;
}
#section-3 {
background-color: red;
}
#section-4 {
background-color: gray;
height: 220px;
}
<p id='status'></p>
<div id='building'>
<div id='section-1' class='sections'>
<h1>Section 1</h1>
</div>
<div id='section-2' class='sections'>
<h1>Section 2</h1>
</div>
<div id='section-3' class='sections'>
<h1>Section 3</h1>
</div>
<div id='section-4' class='sections'>
<h1>Section 4</h1>
</div>
</div>
Here is an example chat app ->
The idea here is to have the .messages-container take up as much of the screen as it can. Within .messages-container, .scroll holds the list of messages, and in case there are more messages then the size of the screen, scrolls.
Now, consider this case:
The user scrolls to the bottom of the conversation
The .text-input, dynamically gets bigger
Now, instead of the user staying scrolled to the bottom of the conversation, the text-input increases, and they no longer see the bottom.
One way to fix it, if we are using react, calculate the height of text-input, and if anything changes, let .messages-container know
componentDidUpdate() {
window.setTimeout(_ => {
const newHeight = this.calcHeight();
if (newHeight !== this._oldHeight) {
this.props.onResize();
}
this._oldHeight = newHeight;
});
}
But, this causes visible performance issues, and it's sad to be passing messages around like this.
Is there a better way? Could I use css in such a way, to express that when .text-input-increases, I want to essentially shift up all of .messages-container
2:nd revision of this answer
Your friend here is flex-direction: column-reverse; which does all you ask while align the messages at the bottom of the message container, just like for example Skype and many other chat apps do.
.chat-window{
display:flex;
flex-direction:column;
height:100%;
}
.chat-messages{
flex: 1;
height:100%;
overflow: auto;
display: flex;
flex-direction: column-reverse;
}
.chat-input { border-top: 1px solid #999; padding: 20px 5px }
.chat-input-text { width: 60%; min-height: 40px; max-width: 60%; }
The downside with flex-direction: column-reverse; is a bug in IE/Edge/Firefox, where the scrollbar doesn't show, which your can read more about here: Flexbox column-reverse and overflow in Firefox/IE
The upside is you have ~ 90% browser support on mobile/tablets and ~ 65% for desktop, and counting as the bug gets fixed, ...and there is a workaround.
// scroll to bottom
function updateScroll(el){
el.scrollTop = el.scrollHeight;
}
// only shift-up if at bottom
function scrollAtBottom(el){
return (el.scrollTop + 5 >= (el.scrollHeight - el.offsetHeight));
}
In the below code snippet I've added the 2 functions from above, to make IE/Edge/Firefox behave in the same way flex-direction: column-reverse; does.
function addContent () {
var msgdiv = document.getElementById('messages');
var msgtxt = document.getElementById('inputs');
var atbottom = scrollAtBottom(msgdiv);
if (msgtxt.value.length > 0) {
msgdiv.innerHTML += msgtxt.value + '<br/>';
msgtxt.value = "";
} else {
msgdiv.innerHTML += 'Long long content ' + (tempCounter++) + '!<br/>';
}
/* if at bottom and is IE/Edge/Firefox */
if (atbottom && (!isWebkit || isEdge)) {
updateScroll(msgdiv);
}
}
function resizeInput () {
var msgdiv = document.getElementById('messages');
var msgtxt = document.getElementById('inputs');
var atbottom = scrollAtBottom(msgdiv);
if (msgtxt.style.height == '120px') {
msgtxt.style.height = 'auto';
} else {
msgtxt.style.height = '120px';
}
/* if at bottom and is IE/Edge/Firefox */
if (atbottom && (!isWebkit || isEdge)) {
updateScroll(msgdiv);
}
}
/* fix for IE/Edge/Firefox */
var isWebkit = ('WebkitAppearance' in document.documentElement.style);
var isEdge = ('-ms-accelerator' in document.documentElement.style);
var tempCounter = 6;
function updateScroll(el){
el.scrollTop = el.scrollHeight;
}
function scrollAtBottom(el){
return (el.scrollTop + 5 >= (el.scrollHeight - el.offsetHeight));
}
html, body { height:100%; margin:0; padding:0; }
.chat-window{
display:flex;
flex-direction:column;
height:100%;
}
.chat-messages{
flex: 1;
height:100%;
overflow: auto;
display: flex;
flex-direction: column-reverse;
}
.chat-input { border-top: 1px solid #999; padding: 20px 5px }
.chat-input-text { width: 60%; min-height: 40px; max-width: 60%; }
/* temp. buttons for demo */
button { width: 12%; height: 44px; margin-left: 5%; vertical-align: top; }
/* begin - fix for hidden scrollbar in IE/Edge/Firefox */
.chat-messages-text{ overflow: auto; }
#media screen and (-webkit-min-device-pixel-ratio:0) {
.chat-messages-text{ overflow: visible; }
/* reset Edge as it identifies itself as webkit */
#supports (-ms-accelerator:true) { .chat-messages-text{ overflow: auto; } }
}
/* hide resize FF */
#-moz-document url-prefix() { .chat-input-text { resize: none } }
/* end - fix for hidden scrollbar in IE/Edge/Firefox */
<div class="chat-window">
<div class="chat-messages">
<div class="chat-messages-text" id="messages">
Long long content 1!<br/>
Long long content 2!<br/>
Long long content 3!<br/>
Long long content 4!<br/>
Long long content 5!<br/>
</div>
</div>
<div class="chat-input">
<textarea class="chat-input-text" placeholder="Type your message here..." id="inputs"></textarea>
<button onclick="addContent();">Add msg</button>
<button onclick="resizeInput();">Resize input</button>
</div>
</div>
Side note 1: The detection method is not fully tested, but it should work on newer browsers.
Side note 2: Attach a resize event handler for the chat-input might be more efficient then calling the updateScroll function.
Note: Credits to HaZardouS for reusing his html structure
You just need one CSS rule set:
.messages-container, .scroll {transform: scale(1,-1);}
That's it, you're done!
How it works: First, it vertically flips the container element so that the top becomes the bottom (giving us the desired scroll orientation), then it flips the content element so that the messages won't be upside down.
This approach works in all modern browsers. It does have a strange side effect, though: when you use a mouse wheel in the message box, the scroll direction is reversed. This can be fixed with a few lines of JavaScript, as shown below.
Here's a demo and a fiddle to play with:
//Reverse wheel direction
document.querySelector('.messages-container').addEventListener('wheel', function(e) {
if(e.deltaY) {
e.preventDefault();
e.currentTarget.scrollTop -= e.deltaY;
}
});
//The rest of the JS just handles the test buttons and is not part of the solution
send = function() {
var inp = document.querySelector('.text-input');
document.querySelector('.scroll').insertAdjacentHTML('beforeend', '<p>' + inp.value);
inp.value = '';
inp.focus();
}
resize = function() {
var inp = document.querySelector('.text-input');
inp.style.height = inp.style.height === '50%' ? null : '50%';
}
html,body {height: 100%;margin: 0;}
.conversation {
display: flex;
flex-direction: column;
height: 100%;
}
.messages-container {
flex-shrink: 10;
height: 100%;
overflow: auto;
}
.messages-container, .scroll {transform: scale(1,-1);}
.text-input {resize: vertical;}
<div class="conversation">
<div class="messages-container">
<div class="scroll">
<p>Message 1<p>Message 2<p>Message 3<p>Message 4<p>Message 5
<p>Message 6<p>Message 7<p>Message 8<p>Message 9<p>Message 10<p>Message 11<p>Message 12<p>Message 13<p>Message 14<p>Message 15<p>Message 16<p>Message 17<p>Message 18<p>Message 19<p>Message 20
</div>
</div>
<textarea class="text-input" autofocus>Your message</textarea>
<div>
<button id="send" onclick="send();">Send input</button>
<button id="resize" onclick="resize();">Resize input box</button>
</div>
</div>
Edit: thanks to #SomeoneSpecial for suggesting a simplification to the scroll code!
Please try the following fiddle - https://jsfiddle.net/Hazardous/bypxg25c/. Although the fiddle is currently using jQuery to grow/resize the text area, the crux is in the flex related styles used for the messages-container and input-container classes -
.messages-container{
order:1;
flex:0.9 1 auto;
overflow-y:auto;
display:flex;
flex-direction:row;
flex-wrap:nowrap;
justify-content:flex-start;
align-items:stretch;
align-content:stretch;
}
.input-container{
order:2;
flex:0.1 0 auto;
}
The flex-shrink value is set to 1 for .messages-container and 0 for .input-container. This ensures that messages-container shrinks when there is a reallocation of size.
I've moved text-input within messages, absolute positioned it to the bottom of the container and given messages enough bottom padding to space accordingly.
Run some code to add a class to conversation, which changes the height of text-input and bottom padding of messages using a nice CSS transition animation.
The JavaScript runs a "scrollTo" function at the same time as the CSS transition is running to keep the scroll at the bottom.
When the scroll comes off the bottom again, we remove the class from conversation
Hope this helps.
https://jsfiddle.net/cnvzLfso/5/
var doScollCheck = true;
var objConv = document.querySelector('.conversation');
var objMessages = document.querySelector('.messages');
var objInput = document.querySelector('.text-input');
function scrollTo(element, to, duration) {
if (duration <= 0) {
doScollCheck = true;
return;
}
var difference = to - element.scrollTop;
var perTick = difference / duration * 10;
setTimeout(function() {
element.scrollTop = element.scrollTop + perTick;
if (element.scrollTop === to) {
doScollCheck = true;
return;
}
scrollTo(element, to, duration - 10);
}, 10);
}
function resizeInput(atBottom) {
var className = 'bigger',
hasClass;
if (objConv.classList) {
hasClass = objConv.classList.contains(className);
} else {
hasClass = new RegExp('(^| )' + className + '( |$)', 'gi').test(objConv.className);
}
if (atBottom) {
if (!hasClass) {
doScollCheck = false;
if (objConv.classList) {
objConv.classList.add(className);
} else {
objConv.className += ' ' + className;
}
scrollTo(objMessages, (objMessages.scrollHeight - objMessages.offsetHeight) + 50, 500);
}
} else {
if (hasClass) {
if (objConv.classList) {
objConv.classList.remove(className);
} else {
objConv.className = objConv.className.replace(new RegExp('(^|\\b)' + className.split(' ').join('|') + '(\\b|$)', 'gi'), ' ');
}
}
}
}
objMessages.addEventListener('scroll', function() {
if (doScollCheck) {
var isBottom = ((this.scrollHeight - this.offsetHeight) === this.scrollTop);
resizeInput(isBottom);
}
});
html,
body {
height: 100%;
width: 100%;
background: white;
}
body {
margin: 0;
padding: 0;
}
.conversation {
display: flex;
flex-direction: column;
justify-content: space-between;
height: 100%;
position: relative;
}
.messages {
overflow-y: scroll;
padding: 10px 10px 60px 10px;
-webkit-transition: padding .5s;
-moz-transition: padding .5s;
transition: padding .5s;
}
.text-input {
padding: 10px;
-webkit-transition: height .5s;
-moz-transition: height .5s;
transition: height .5s;
position: absolute;
bottom: 0;
height: 50px;
background: white;
}
.conversation.bigger .messages {
padding-bottom: 110px;
}
.conversation.bigger .text-input {
height: 100px;
}
.text-input input {
height: 100%;
}
<div class="conversation">
<div class="messages">
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is the last message
</p>
<div class="text-input">
<input type="text" />
</div>
</div>
</div>
You write;
Now, consider this case:
The user scrolls to the bottom of the conversation
The .text-input, dynamically gets bigger
Wouldn't the method that dynamically sets the .text-input be the logical place to fire this.props.onResize().
To whom it may concern,
The answers above did not suffice my question.
The solution I found was to make my innerWidth and innerHeight variable constant - as the innerWidth of the browser changes on scroll to adapt for the scrollbar.
var innerWidth = window.innerWidth
var innerHeight = window.innerHeight
OR FOR REACT
this.setState({width: window.innerWidth, height: window.innerHeight})
In other words, to ignore it, you must make everything constant as if it were never scrolling. Do remember to update these on Resize / Orientation Change !
IMHO current answer is not a correct one:
1/ flex-direction: column-reverse; reverses the order of messages - I didn't want that.
2/ javascript there is also a bit hacky and obsolete
If you want to make it like a PRO use spacer-box which has properties:
flex-grow: 1;
flex-basis: 0;
and is located above messages. It pushes them down to the chat input.
When user is typing new messages and input height is growing the scrollbar moves up, but when the message is sent (input is cleared) scrollbar is back at bottom.
Check my snippet:
body {
background: #ccc;
}
.chat {
display: flex;
flex-direction: column;
width: 300px;
max-height: 300px;
max-width: 90%;
background: #fff;
}
.spacer-box {
flex-basis: 0;
flex-grow: 1;
}
.messages {
display: flex;
flex-direction: column;
overflow-y: auto;
flex-grow: 1;
padding: 24px 24px 4px;
}
.footer {
padding: 4px 24px 24px;
}
#chat-input {
width: 100%;
max-height: 100px;
overflow-y: auto;
border: 1px solid pink;
outline: none;
user-select: text;
white-space: pre-wrap;
overflow-wrap: break-word;
}
<div class="chat">
<div class="messages">
<div class="spacer-box"></div>
<div class="message">1</div>
<div class="message">2</div>
<div class="message">3</div>
<div class="message">4</div>
<div class="message">5</div>
<div class="message">6</div>
<div class="message">7</div>
<div class="message">8</div>
<div class="message">9</div>
<div class="message">10</div>
<div class="message">11</div>
<div class="message">12</div>
<div class="message">13</div>
<div class="message">14</div>
<div class="message">15</div>
<div class="message">16</div>
<div class="message">17</div>
<div class="message">18</div>
</div>
<div class="footer">
<div contenteditable role="textbox" id="chat-input"></div>
</div>
<div>
Hope I could help :)
Cheers
I'm making something similar to an iphone layout (a bunch of tiles with pictures/numbers that you can click on to get more information). After the layout has been set, I'd like a click-event to expand one of the tiles to be full screen. Right now, it moves the tiles so that the layout is re-adjusted. Is it possible to get masonry to stop rendering so that one tile get's enlarged over the other tiles?
The following is what I've tried (but unsuccessfully). Note: It uses d3.js to generate the div's for masonry to use.
function drawGrid(divname,orders)
{
var mydiv = d3.select(divname);
$(divname).masonry({
itemSelector: '.g1',
isAnimated: true,
//isResizable: true
});
var myd = mydiv.selectAll("div");
var mygs = myd.data(orders,function(d){ return d.orderid;})
.enter().append("div")
.attr("class","g1")
.append("g");
var x1 = mygs.append("div")
.attr("class","tickerdiv")
.text(function(d){ return d.ticker; });
var ActiveOrder = "1";
$(divname+' .g1').click(function() {
//$(this).show('maximised');
console.log("clicked")
$(this).animate({"display":"none","position": "absolute",
"top": "0",
"left": "0",
"width": "100%",
"height": "100%",
"z-index": 1000 }, 1000);
});
var x = [];
x.redraw = function(o)
{
x1.text(function(d){ return d.ticker; });
}
return x;
}
and from the css file:
.g1 { min-height:80px; width: 100px; margin: 15px; float: left; background-color: RGB(223,224,224); border-radius: 10px; vertical-align: middle; text-align: center; padding-top: 20px;}
EDIT Ok, my first answer was not useful here - absolute positioning won't work in case of masonry's/Isotope's relatively positioned container with absolute positioned elemens contained therein; the solution is rather to take the content of a masonry/Isotope element out of the DOM on click and append it temporarily to the body. You can see the basic idea in my dirty swedish sandbox
<!-- masonry/Isotope item large -->
<div class="item large">
<div class="header">
<p>Click here</p>
</div>
<div class="minimised">
<p>Preview</p>
</div>
<div class="maximised">
<p>Content</p>
<button id="screen-overlay-on">Screen overlay on</button>
<div id="screen-overlay-background"></div>
<div id="screen-overlay-content">
<p>Content</p>
<button id="screen-overlay-off">Screen overlay off</button>
</div>
</div>
</div>
<script type="text/javascript">
$(document).ready(function(){
$('#screen-overlay-on').click(function(){
var sob = $('#screen-overlay-background').detach();
var soc = $('#screen-overlay-content').detach();
sob.appendTo('body');
soc.appendTo('body');
$('#screen-overlay-background').toggleClass("active");
$('#screen-overlay-content').toggleClass("active");
});
$('#screen-overlay-background, #screen-overlay-off').click(function(){
$('#screen-overlay-background').toggleClass("active");
$('#screen-overlay-content').toggleClass("active");
});
});
</script>
With CSS like
#screen-overlay-background {
display: none;
position: fixed;
top: 0;
left: 0;
height: 100%;
width: 100%;
background-color: #333;
zoom: 1;
filter: alpha(opacity=50);
opacity: 0.5;
z-index: 1000;
}
#screen-overlay-content {
display: none;
position: absolute;
top: 50%;
left: 50%;
height: 240px;
width: 320px;
margin: -120px 0 0 -160px;
background-color: #FFF;
z-index: 1000;
}
#screen-overlay-background.active, #screen-overlay-content.active {
display: block;
}
You can add a :hover to the element in css and change the z-index. You could easily change this on click with a class as well...
.item {
z-index:1
}
.item:hover{
z-index:2500;
}