我的笔:http ://codepen.io/helloworld/pen/gimoI
我想在表格行上有一个灰色和白色边框以实现 3d 效果。
为什么只有一种边框颜色可见?
<link href="http://netdna.bootstrapcdn.com/font-awesome/3.2.1/css/font-awesome.css" rel="stylesheet">
<table style="width:100%;">
  <tr>
    <td style="vertical-align:top;width:60px;">Alarm 1</td>
    <td style="width:auto;">
      <span style="font-weight:bold;">Brand LANG: </span>
      <span>Helmenstraße 5</span>
    <span>90000 Nürnbergxxxxxxxxx</span>
    </td>
    <td style="width:30px;text-align:center;"> <i class="icon-angle-down button"></i></td>
  </tr>
  <tr>
    <td style="width:60px;vertical-align:top;">
      <div style="border-radius:28px;border:black solid 1px;background:red;">Alarm 1</div>
    </td>
    <td style="width:auto;">
      <span style="font-weight:bold;">Brand LANG: </span>
      <span>Langenburgerwald allee 25/c</span>
      <span>70000 Wurmlingen ob der Tauber</span>
    </td>
    <td style="width:30px;text-align:center;"> <i class="icon-angle-down button"></i></td>
  </tr> 
</table>
body,html{ 
  padding:0;
  margin:10px;
  background:#fafafa;  
}
table{
  border-collapse:collapse;
  border-spacing:0;
}
table td
{
    padding: 5px;
}
td {
   border-bottom: gray solid 2px;
   border-top: white solid 2px;
  background:green;
}