HTML 代码如下: <p><a>Run</a></p> <div id=”box”> </div> <p><a>Run</a></p><div id=”box”></div> CSS 代码如下: <style type=”text/css”> body {}{ margin: 20px auto; padding: 0; width: 580px; font: 80%/120% Arial, Helvetica, sans-serif; } a {}{ font-weight: bold; color:
