鼠标经过图片放大归纳

<div class="gallery cf">
<div>
<img src="landscape-test-1_1x.jpg" />
</div>
<div>
<img src="iceberg_1x.jpg" />
</div>
<div>
<img src="igloo-800_1x.jpg" />
</div>
<div>
<img src="trees_1x.jpg" />
</div>
<div>
<img src="space_1x.jpg" />
</div>
<div>
<img src="render1_1x.jpg" />
</div>
</div>

* {
padding: 0;
margin: 0;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}

.gallery {
width: 790px;
padding: 5px;
background: #333333;
margin: 30px auto;
}

.gallery > div {
position: relative;
float: left;
padding: 5px;
}

.gallery > div > img {
width: 250px;
-webkit-transition: all .1s linear;
-moz-transition: all .1s linear;
-ms-transition: all .1s linear;
-o-transition: all .1s linear;
transition: all .1s linear;
-webkit-transform: translateZ(0);
-moz-transform: translateZ(0);
-ms-transform: translateZ(0);
-o-transform: translateZ(0);
transform: translateZ(0);
}

.gallery > div:hover {
z-index: 1;
}

.gallery > div:hover > img {
-webkit-transform: scale(1.5);
-moz-transform: scale(1.5);
-ms-transform: scale(1.5);
-o-transform: scale(1.5);
transform: scale(1.5);
}

/*清除浮动代码*/
.cf:before,.cf:after {
display: table;
content: '';
line-height: 0;
}

.cf:after {
clear: both;
}