#tb, tb1, tr, th, td { border: 5px solid blue; /*加边框*/ padding: 5px; /*内边距*/ } #tb1 { border-collapse: collapse; /*合并边框*/ width: 500px; height: 500px; text-align: center; background-color: aqua; }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>表格及轮廓</title> <link rel="stylesheet" href="tzy.css" type="text/css"> </head> <body> <table id="tb"> <tr class="alt"> <th>姓名</th> <th>年龄</th> <th>性别</th> </tr> <tr> <td>小王</td> <td>15</td> <td>男</td> </tr> <tr class="alt"> <td>小王</td> <td>15</td> <td>男</td> </tr> <tr> <td>小王</td> <td>15</td> <td>男</td> </tr> </table> <br/> <table id="tb1"> <tr> <th>姓名</th> <th>年龄</th> <th>性别</th> </tr> <tr> <td>小王</td> <td>15</td> <td>男</td> </tr> <tr> <td>小王</td> <td>15</td> <td>男</td> </tr> <tr> <td>小王</td> <td>15</td> <td>男</td> </tr> </table> <br/> <br/> <p style="outline-style: groove;outline-width: 1px">文字效果实心框</p> <br/> <br/> <p style="outline-style: double;outline-width: 20px">文字效果双虚线框</p> </body> </html>