W3School TIY
编辑您的代码：
<html> <head> <script type="text/javascript"> function moveleft() { document.getElementById('header').style.position="absolute" document.getElementById('header').style.left="0" } function moveback() { document.getElementById('header').style.position="relative" } </script> </head> <body> <h1 id="header" onmouseover="moveleft()" onmouseout="moveback()"> 请把鼠标移动到文本上</h1> </body> </html>
查看结果: