Javascript DOM HTML Element offsetHeight Property compare to clientHeight

Introduction

This example demonstrates the difference between clientHeight/clientWidth and offsetHeight/offsetWidth:

Click the button to get the clientHeight, clientWidth, offsetHeight and offsetWidth of div.

View in separate window 

<!DOCTYPE html>
<html>
<head>
<style>
#myDIV {/*from   w w  w.  ja va  2s.c  om*/
  height: 250px;
  width: 400px;
  padding: 10px;
  margin: 15px;
  border: 5px solid red;
  background-color: lightblue;
}
</style>
</head>
<body>
<button onclick="myFunction()">Test</button>

<div id="myDIV">
  <b>Information about this div:</b><br>
  Height: 250px<br>
  Width: 400px<br>
  padding: 10px<br>
  margin: 15px<br>
  border: 5px<br>
  <p id="demo"></p>
</div>

<script>
function myFunction() {
  var elmnt = document.getElementById("myDIV");
  var txt = "";
  txt += "Height including padding: " + elmnt.clientHeight + "px<br>";
  txt += "Height including padding and border: " + elmnt.offsetHeight + "px<br>";
  txt += "Width including padding: " + elmnt.clientWidth + "px<br>";
  txt += "Width including padding and border: " + elmnt.offsetWidth + "px";
  document.getElementById("demo").innerHTML = txt;
}
</script>

</body>
</html>



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