@charset "utf-8";
ul{list-style:none;margin:0;padding:0;}
.home_pro {float: center;}
.home_pro ul li{width:25%;margin:0 4% 4% 3%;float:left;}
.home_pro ul li a img{height:120px;max-width:100%;border:0;transition:all 1s;-webkit-transition:all 1s;-moz-transition:all 1s;-o-transition:all 1s;}