​x
 
<!DOCTYPE html>
<html>
<style>
#myDIV {
  height: 250px;
  width: 400px;
  padding: 10px;
  margin: 15px;
  border: 5px solid red;
  background-color: lightblue;
}
</style>
​
<body>
<h1>Element 对象</h1>
​
<h2>offsetHeight 和 offsetWidth 属性</h2>
​
<div id="myDIV">
  <b>有关此 div 的信息：</b><br>
  Height: 250px<br>
  Width: 400px<br>
  Padding: 10px<br>
  Margin: 15px<br>
  Border: 5px<br>
  <p id="demo"></p>
</div>
​
<script>
const element = document.getElementById("myDIV");
let text = "包括内边距和边框的高度：" + element.offsetHeight + "px<br>";
text += "包括内边距和边框的宽度：" + element.offsetWidth + "px";
document.getElementById("demo").innerHTML = text;
</script>
​
</body>
</html>
​
​