在<head></head>里面引入以下css文件和js文件即可实现
<link rel="stylesheet" href="loading.css"> <script src="loading.js"></script>
loading.css如下
.spinner { width: 60px; height: 60px; background-image: linear-gradient(0deg,#8a76f6,#70cafe); margin: 100px auto; -webkit-animation: rotateplane 1.2s infinite ease-in-out; animation: rotateplane 1.2s infinite ease-in-out; } @-webkit-keyframes rotateplane { 0% { -webkit-transform: perspective(120px) } 50% { -webkit-transform: perspective(120px) rotateY(180deg) } 100% { -webkit-transform: perspective(120px) rotateY(180deg) rotateX(180deg) } } @keyframes rotateplane { 0% { transform: perspective(120px) rotateX(0deg) rotateY(0deg); -webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg) } 50% { transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg); -webkit-transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg) } 100% { transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg); -webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg); } }
loading.js如下
//获取浏览器页面可见高度和宽度 var _PageHeight = document.documentElement.clientHeight, _PageWidth = document.documentElement.clientWidth; //计算loading框距离顶部和左部的距离(loading框的宽度为215px,高度为61px) var _LoadingTop = _PageHeight > 90 ? (_PageHeight - 90) / 2 : 0, _LoadingLeft = _PageWidth > 90 ? (_PageWidth - 90) / 2 : 0; //在页面未加载完毕之前显示的loading Html自定义内容 var _LoadingHtml = '<div id="loadingDiv" style="position:absolute;left:0;width:100%;height:' + _PageHeight + 'px;top:0;background:#FFFFFF;opacity:1.0;filter:alpha(opacity=80);z-index:10000;"><div class="spinner" style="position: top: 60px; margin:' + _LoadingTop + 'px auto ;"></div></div>'; //呈现loading效果 document.write(_LoadingHtml); //监听加载状态改变 document.onreadystatechange = completeLoading; //加载状态为complete时移除loading效果 function completeLoading() { if (document.readyState == "complete") { $("#loadingDiv").fadeOut(1500); } }