​x
 
<!DOCTYPE html>
<html>
<body>
​
<p id="p1">Hello World!</p>
<p id="p2">Hello World!</p>
​
<script>
document.getElementById("p2").style.color = "blue";
document.getElementById("p2").style.fontFamily = "Arial";
document.getElementById("p2").style.fontSize = "larger";
</script>
​
<p>第二个段落的样式已被脚本修改。</p>
​
</body>
</html>
​