Combining overlapping HTML and CSS elements

I have designed a webpage with some tile-like divs that float to the left and are displayed based on user permissions. When the tiles are hovered over, suboptions appear for users to navigate to.

Among these tiles is one that I want to enlarge when hovered over, which I achieved by changing the CSS class of the tile using JavaScript.

However, my issue is that I want this larger tile to overlap the smaller tiles on the page. Currently, it displays under the other tiles instead of overlapping them.

Here is an excerpt of my code:

<!-- Code snippet goes here -->

In my JavaScript function, I have the following line of code to change the CSS class of the admin tile:

setTimeout(function(){document.getElementById('admin').className = 'largetile'; }, menuDelayTimeout);

How can I ensure that this large tile overlaps the other div tiles on the page rather than appearing underneath them?

Your assistance would be greatly appreciated.

Thank you, Mike

javascripthtmlcss

Answer №1

One effective method to achieve a responsive design is by utilizing percentages. This approach ensures that the layout adapts well to different screen sizes.

The concept involves using a container div along with two overlapping divs to create a layered effect.

This example showcases the use of three layers, but you can customize it according to your needs. The key is to maintain responsiveness in various scenarios without focusing too much on the content itself.

#wrapper {
  display: inline-block;
  width: 100%;
  height: auto;
}

#image {
  position: absolute;
  width: 100%;
}

#video {
position: absolute;
    width: 100%;
    max-width: 90%;
    height: 75%;
    top: 6.75%;
    left: 4.25%;
    border: none;
}
<div id="wrapper">
  <div id="image">
    <img src="http://example.com/image.png" width="100%" height="auto">
    <div id="video">
       <iframe class="YouTube" width="100%" height="100%" src="https://www.youtube.com/embed/example-video" frameborder="0" allowfullscreen></iframe>
    </div>
  </div>
</div>

See the live demonstration here.

Answer №2

Is this the kind of layout you had in mind?

HTML

<div class="box"><div class="contents"></div></div>
<div class="box big-box"><div class="contents">See how I stand out from the rest :)</div></div>
<div class="box"><div class="contents"></div></div>

CSS:

.box {
  width:100px;
  height:100px;
  border:solid 1px #ccc;
  float:left;
  overflow:hidden;
  background: steelblue;
}

.contents {
  display:none;
}

.big-box:hover >.contents {
  display:inline;
  position:absolute;
  width:150px;
  height:150px;
  background:red;
  border:1px solid #fff;
}

Check it out here!

Answer №3

Include the following code in your large-tile stylesheet:

position: sticky;
top: 0;
left: 0;
right: 0;
bottom: 0;

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