W3School TIY
编辑您的代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html> <head> <style type="text/css"> table { border-collapse:collapse; } table, td, th { border:1px solid black; } </style> </head> <body> <table> <tr> <th>Firstname</th> <th>Lastname</th> </tr> <tr> <td>Bill</td> <td>Gates</td> </tr> <tr> <td>Steven</td> <td>Jobs</td> </tr> </table> <p><b>注释：</b>如果没有规定 !DOCTYPE，border-collapse 属性可能会引起意想不到的错误。</p> </body> </html>
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