​x
 
<!DOCTYPE html>
<html>
<body>
​
<h3>演示如何创建 LEGEND 元素</h3>
​
<p>点击按钮来创建含有文本的 LEGEND 元素。</p>
​
<fieldset id="myFieldset">
  Name: <input type="text">
</fieldset><br>
​
<button onclick="myFunction()">试一下</button>
​
<script>
function myFunction()
{
var x = document.createElement("LEGEND");
var t = document.createTextNode("Personalia:");
x.appendChild(t);
document.getElementById("myFieldset").appendChild(x);
}
</script>
​
</body>
</html>
​