The max-height Property in CSS

CSS Web Development Front End Technology

We can define a fixed max-height for an element’s content box using CSS max-height property which does not allows the element’s content box to be taller even if height is greater than max-height.

Syntax

The syntax of CSS max-height property is as follows −

Selector {
   max-height: /*value*/
}

Let’s see an example for CSS max-height property −

Example

Live Demo

<!DOCTYPE html>
<html>
<head>
<title>CSS max-height Property</title>
</head>
<style>
* {
   padding: 2px;
   margin:5px;
}
button {
   border-radius: 10px;
}
#containerDiv {
width:70%;
margin: 0 auto;
   padding:20px;
   background-image: linear-gradient(135deg, #dc3545 0%, #9599E2 100%);
   text-align: center;
   border-radius: 10px;
}
#contentDiv{
   max-height:50px;
   overflow: hidden;
}
</style>
<body>
<div id="containerDiv">
<div id="contentDiv">
This is paragraph 1 with some dummy text. This is paragraph 1 with some dummy text. This is paragraph 1 with some dummy text. This is paragraph 1 with some dummy text. This is paragraph 1 with some dummy text. This is paragraph 1 with some dummy text.
</div>
<button onclick="add()" class="btn">Set maxHeight</button>
</div>
<script>
function add() {
   document.querySelector('#contentDiv').style.maxHeight = "100px";
}
</script>
</body>
</html>

Output

Before clicking ‘Set maxHeight’ button −

After clicking ‘Set maxHeight’ button −

Let’s see another example for the CSS max-height property −

Example

Live Demo

<!DOCTYPE html>
<html>
<head>
<title>CSS max-height</title>
<style>
form {
   width:70%;
   margin: 0 auto;
   text-align: center;
}
* {
   padding: 2px;
   margin:5px;
}
#containerDiv {
   margin: 0 auto;
   max-height: 150px;
}
</style>
</head>
<body>
<form>
<fieldset>
<legend>CSS max-height</legend>
<div id="containerDiv">
<img id="image" src="https://www.tutorialspoint.com/openshift/images/openshift-mini-logo.jpg">
</div>
</fieldset>
</form>
</body>
</html>