以前都是这里找那里找，现在自己修改好了一个在各种浏览器上兼容的js代码：div:<div id=’animation’ style=’display:none;position:fixed;width:270px;height:220px;background-color:#fff;z-index:9999;’></div>js:var winWidth = 0;var winHeight = 0;function findDimensions(){//函数：获取尺寸//获取宽度if(window.innerWidth)winWidth = window.innerWidth;else if((document.body) && (document.body.clientWidth))winWidth = document.body.clientWidth;//获取高度if(window.innerHeight)winHeight = window.innerHeight;else if((document...