获取通过class 获取样式，obj.currentStyle.样式名 -> IE系列浏览器，getComputedStyle(obj, false)[name] -> chrome FF IE9+
<!doctype html> <html> <head> <meta charset="utf-8"> <meta name="author" content="智能社 - zhinengshe.com"> <meta name="copyright" content="智能社 - zhinengshe.com"> <title>智能社 - www.zhinengshe.com</title> <style> #div1 { width:300px; height:200px; background:#ccc; } </style> <script> //obj.currentStyle.样式名 -> IE系列浏览器 //getComputedStyle(obj, false)[name] -> chrome FF IE9+ window.onload=function (){ var oDiv=document.getElementById(‘div1‘); console.log(getStyle(oDiv, ‘width‘)) function getStyle(obj,name){ return obj.currentStyle ? obj.currentStyle[name] : getComputedStyle(obj,false)[name]; } }; </script> </head> <body> <div id="div1"></div> </body> </html>
参考 http://www.jb51.net/article/34863.htm
getComputedStyle与currentStyle获取样式(style/class)
原文：http://www.cnblogs.com/heboliufengjie/p/4791512.html