css3为图片添加鼠标移入放大效果

只需要为添加效果的图片定义一个伪类

img.zoom-img:hover {
    -webkit-transform: scale(1.15);
    -webkit-transition-timing-function: ease-out;
    -webkit-transition-duration: 20000ms;
    -moz-transform: scale(1.15);
    -moz-transition-timing-function: ease-out;
    -moz-transition-duration: 750ms;
    overflow: hidden;
}