A sleek image gallery that takes advantage of CSS3 animation, shadows, and the “transform” property to instantly add a smooth hover effect to its images, whereby the image enlarges and moves closer to the user.

The hover effect currently works best in Google Chrome, Safari 4+, and Opera 9.5+. In FF 3.6, the CSS animation is skipped, while in IE, the entire effect isn’t visible.

Example:

Css source:

.css3gallery img{
-webkit-transform:scale(0.8); /*Webkit: Scale down image to 0.8x original size*/
-moz-transform:scale(0.8); /*Mozilla scale version*/
-o-transform:scale(0.8); /*Opera scale version*/
-webkit-transition-duration: 0.5s; /*Webkit: Animation duration*/
-moz-transition-duration: 0.5s; /*Mozilla duration version*/
-o-transition-duration: 0.5s; /*Opera duration version*/
opacity: 0.7; /*initial opacity of images*/
margin: 0 10px 5px 0; /*margin between images*/
}

.css3gallery img:hover{
-webkit-transform:scale(1.1); /*Webkit: Scale up image to 1.2x original size*/
-moz-transform:scale(1.1); /*Mozilla scale version*/
-o-transform:scale(1.1); /*Opera scale version*/
box-shadow:0px 0px 30px gray; /*CSS3 shadow: 30px blurred shadow all around image*/
-webkit-box-shadow:0px 0px 30px gray; /*Safari shadow version*/
-moz-box-shadow:0px 0px 30px gray; /*Mozilla shadow version*/
opacity: 1;
}

Html source:

<div class="css3gallery">
<img src="css3-1.jpg" alt="css3 gallery" title="css3 gallery" />
<img src="css3-1.jpg" alt="css3 gallery" title="css3 gallery" />
<img src="css3-1.jpg" alt="css3 gallery" title="css3 gallery" />
</div>

The article source:http://css3c.com/css3/css3-attributes-used-to-create-gallery/