摘要:
<style type="text/css"> #box1{ width: 100px; height: 100px; background-color: red; position: absolute; } </style> <script type="text/javascript"> //使d 阅读全文
摘要:
<body> <div id="box1"></div> <div id="box2"></div> </body> <style type="text/css"> #box1 { width: 100px; height: 100px; background-color: red; positio 阅读全文