​x
 
<!DOCTYPE html>
<html>
<head>
<style>
​
table, td, th {
  border: 1px solid;
  padding: 10px;
}
th {
  writing-mode: vertical-lr;
  text-orientation: upright;
}
table {
  width: 200px;
  border-collapse: collapse;
}
</style>
</head>
<body>
​
<h1>让表格表头显示直立字符的垂直文本</h1>
​
<table>
  <tr>
    <th>Firstname</th>
    <th>Lastname</th>
  </tr>
  <tr>
    <td>Bill</td>
    <td>Gates</td>
  </tr>
  <tr>
    <td>Steve</td>
    <td>Jobs</td>
  </tr>
</table>
​
</body>
</html>
​