<!DOCTYPE><html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><title>CSS3转换 | css遮罩</title><script> function showDiv(){ document.getElementById('bg').style.display = 'block'; document.getElementById('show').style.display = 'block'; } function hidden1(){ document.getElementById('bg').style.display = 'none'; document.getElementById('show').style.display = 'none'; }</script><style> #bg{ background-color:#000000; opacity:0.5; width:100%; height:100%; z-index:1000; position:absolute; top:0%; left:0%; display:none } #show{ background-color:white; width:500px; height:500px; z-index:1002; border:6px solid #E8E9F7; position:absolute; top:20%; left:20%; display:none; border-radius:25px;} #css3div{ opacity: 0.6; font-size:16px; color:#FFFFFF; border-radius:10px; border:5px solid #FFCC99; background-color:#66FF99; width:100px; height:50px; text-align:center; padding-top:30px; margin-left:40%; -webkit-transition: width 2s, height 2s, -webkit-transform 2s, opacity 1s, background 1s, font-size 1s; } #css3div:hover{ width:150px; height:70px; -webkit-transform:rotate(360deg); background-color:#6633FF; opacity: 1; font-size:20px; color:#FFFFFF; } </style></head><body><input type="button" onClick="showDiv()" value="show" /><div id='bg'></div><div id="show"> <input type="button" onClick="hidden1()" value="hidden" /> <h1 style="text-shadow: 5px 5px 5px #FF0000;">哈哈的厉害厉害</h1> <div id='css3div'>CSS3效果</div></div></body></html>