How to make in CSS an overlay over an image?

Question

I am trying to achieve something like this:

When I hover over an image, I would like to put on that image this dark color with some text and the icon.

I am stuck here. I found some tutorials but they didn't work out for this case. Also, another issue -- every image has a different height. The width is always the same.

How can this effect be achieved?

Answer 1

You can achieve this with this simple CSS/HTML:

.image-container {     position: relative;     width: 200px;     height: 300px; } .image-container .after {     position: absolute;     top: 0;     left: 0;     width: 100%;     height: 100%;     display: none;     color: #FFF; } .image-container:hover .after {     display: block;     background: rgba(0, 0, 0, .6); } 

HTML

<div class="image-container">     <img src="http://lorempixel.com/300/200" />     <div class="after">This is some content</div> </div> 

Demo: http://jsfiddle.net/6Mt3Q/

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UPD: Here is one nice final demo with some extra stylings.

.image-container {      position: relative;      display: inline-block;  }  .image-container img {display: block;}  .image-container .after {      position: absolute;      top: 0;      left: 0;      width: 100%;      height: 100%;      display: none;      color: #FFF;  }  .image-container:hover .after {      display: block;      background: rgba(0, 0, 0, .6);  }  .image-container .after .content {      position: absolute;      bottom: 0;      font-family: Arial;      text-align: center;      width: 100%;      box-sizing: border-box;      padding: 5px;  }  .image-container .after .zoom {      color: #DDD;      font-size: 48px;      position: absolute;      top: 50%;      left: 50%;      margin: -30px 0 0 -19px;      height: 50px;      width: 45px;      cursor: pointer;  }  .image-container .after .zoom:hover {      color: #FFF;  }

<link href="//netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.min.css" rel="stylesheet"/>    <div class="image-container">      <img src="http://lorempixel.com/300/180" />      <div class="after">          <span class="content">This is some content. It can be long and span several lines.</span>          <span class="zoom">              <i class="fa fa-search"></i>          </span>      </div>  </div>