​x
 
<!DOCTYPE html>
<html>
<body>
​
<p id="demo">This is a paragraph.</p>
<p>This is another paragraph.</p>
<p>THIS IS ANOTHER PARAGRAPH.</p>
​
<button type="button" onclick="myFunction()">将 id="myP" 的 p 元素设置为小型大写字体</button>
 
<script>
function myFunction() {
  document.getElementById("demo").style.fontVariant = "small-caps";
}
</script>
​
</body>
</html>
​