代ç ï¼
ææï¼
åçï¼
å
ç»ç¶çº§<div>设置宽度ï¼åç´ ï¼
ç¶ååå<div>éï¼è®¾ç½®ç¾åæ¯ï¼å¦å¾ç¤ºã
代ç å件ï¼
<div style="width:80px;height:50px; border:#FF0000 3px solid">
<div style="width:20%;height:50%; border:#CC33FF 3px solid"></div>
</div>
å¤å¶å°<body></body>ä¹é´ä½¿ç¨å³å¯ã