<!DOCTYPE html> <html lang="zh"> <head> <meta charset="UTF-8"> <title>html5标签</title> <style> .round{ width: 100px; height: 100px; background: red; box-shadow: 5px 0 5px #000; border-radius: 50px; } </style> </head> <body> <div class="round"> </div> </body> </html>
css3的border-radius在IE下没有效果，加上：
behavior: url(ie-css3.htc);
<!DOCTYPE html> <html lang="zh"> <head> <meta charset="UTF-8"> <title>html5标签</title> <style> .round{ width: 100px; height: 100px; background: red; box-shadow: 5px 0 5px #000; border-radius: 50px; behavior: url(ie-css3.htc); } </style> </head> <body> <div class="round"> </div> </body> </html>
原文：http://www.cnblogs.com/tinyphp/p/4782543.html