<html> <head> <style type="text/css"> p { border: thick solid #FF0000 } </style> <script type="text/javascript"> function changeBorderColor() { document.getElementById("p1").style.borderLeftColor="#0000FF"; } </script> </head> <body> <input type="button" onclick="changeBorderColor()" value="Change left border" /> <p id="p1">This is a paragraph</p> </body> </html>
结果:
编辑上面的代码，点击查看结果。
yige.org
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