Javascript DOM CSS Style minHeight Property

Introduction

Set the minimum height of a <div> element:

document.getElementById("myDIV").style.minHeight = "100px";

Click the button to make sure that the DIV element's height never becomes less than 400 pixels:

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<!DOCTYPE html>
<html>
<head>
<style>
#myDIV {// ww  w.  ja v a  2  s . c  o  m
  width: 500px;
  background-color: lightblue;
  overflow: auto;
}
</style>
</head>
<body>
<button onclick="myFunction()">Test</button>

<div id="myDIV">
  <p>This DIV element does not have a pre-defined height.</p>

  <p>The height of this DIV element depends on its content.</p>

  <p>But if you click the "Test" button, yo will make sure that this DIV element does not become less than 400 pixels in height.</p>
</div>

<script>
function myFunction() {
  document.getElementById("myDIV").style.minHeight = "400px";
}
</script>

</body>
</html>

The minHeight property sets or gets the minimum height of an element.

The minHeight property has effect only on block-level elements or on elements with absolute or fixed position.

Property Values

Value	Description
length	Sets the minimum height in length units. `Default` is 0
%	Sets the minimum height in % of the parent element
initial	Sets this property to its default value.
inherit	Inherits this property from its parent element.

The minHeight property Default Value: 0

The minHeight property returns a String representing the minimum height of an element.

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