​x
 
<!DOCTYPE html>
<html>
<body>
​
<h2 id="myH2" style="position:absolute;left:100px;top:150px;">这是标题</h2>
​
<button type="button" onclick="myFunction()">返回位置的类型</button>
​
<script>
function myFunction() {
  alert(document.getElementById("myH2").style.position);
}
</script>
​
</body>
</html>
​