这是有效的解决方案：
table { width: 100%;}thead, tbody, tr, td, th { display: block; }tr:after { content: ' '; display: block; visibility: hidden; clear: both;}thead th { height: 30px; }tbody { height: 120px; overflow-y: auto;}thead { }tbody td, thead th { width: 19.2%; float: left;}<link href="http://netdna.bootstrapcdn.com/bootstrap/3.0.3/css/bootstrap.min.css" rel="stylesheet"/><table > <thead> <tr> <th>Make</th> <th>Model</th> <th>Color</th> <th>Year</th> </tr> </thead> <tbody> <tr> <td >Ford</td> <td >Escort</td> <td >Blue</td> <td >2000</td> </tr> <tr> <td >Ford</td> <td >Escort</td> <td >Blue</td> <td >2000</td> </tr> <tr> <td >Ford</td> <td >Escort</td> <td >Blue</td> <td >2000</td> </tr> <tr> <td >Ford</td> <td >Escort</td> <td >Blue</td> <td >2000</td> </tr> </tbody></table>
