html,body { width:100%; } ul li { list-style:none; } * { margin:0; padding:0; } #box { width:1200px; margin:20px auto; } .slide { height:500px; position:relative; } .slide ul { height:100%; } .slide li { position:absolute; left:200px; top:0; } .slide li img { width:100%; } .arraw { opacity:0; } .arraw a { width:70px; height:110px; display:block; position:absolute; top:50%; margin-top:-55px; z-index:999; } .next { font-famliy:黑体; right:-10px; /*opacity:.5; */ /*filter:alpha(opacity=50); */ } .prev { font-famliy:黑体; left:-10px; }