一个简单的遮罩
1 <style> 2 #loading{ 3 display:none; 4 width:100%; 5 margin:0 auto; 6 position:fixed; 7 left:0; 8 top:0; 9 bottom: 0; 10 z-index: 111; 11 background:#C7C7C7; 12 opacity: 0.8; 13 } 14 #loading img{ 15 position:absolute; 16 top:50%; 17 left:50%; 18 transform: translate(-50%, -50%); 19 } 20 </style> 21 <body> 22 <div id='loading'> 23 <img src="http://api.liumeijingguan.com/Public/Imgs/5-121204193R5-50.gif" alt="上传中"> 24 </div> 25 26 <div onclick="xian()">点击显示</div> 27 </body> 28 </html> 29 <script src="jquery-1.8.1.min.js"></script> 30 <script> 31 function xian(){ 32 $("#loading").show(); 33 setTimeout(function(){ 34 $("#loading").hide(); 35 },3000) 36 } 37 38 </script>