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<!DOCTYPE html> <html> <head> <style> /* 默认的 CSS 值 */ table { display: table; border-collapse: separate; border-spacing: 2px; border-color: gray; } </style> </head> <body> <p>默认情况下，table 元素会这样显示：</p> <table> <tr> <th>Month</th> <th>Savings</th> </tr> <tr> <td>January</td> <td>$100</td> </tr> <tr> <td>February</td> <td>$80</td> </tr> </table> <p>自定义的 table 元素：</p> <table style="border:1px solid red"> <tr> <th>Month</th> <th>Savings</th> </tr> <tr> <td>January</td> <td>$100</td> </tr> <tr> <td>February</td> <td>$80</td> </tr> </table> </body> </html>