max-height: ***; min-height: ***;

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The max-height property specifies the maximum height of an element, and the min-height property specifies the minimum height of an element.

The maximum height and minimum height of the iframe can be specified by applying these properties to the IFRAME element.

iframe {
max-height: 350px;
min-height: 250px;

Property Value Explanation
max-height length, %, or none the size of the maximum height (the default is none)
min-height length or % the size of the minimum height (the default is 0)


<title>TAG index</title>

<style type="text/css">

iframe {
width: 300px;
height: 100%;
max-height: 500px;
min-height: 300px;



<iframe src="example.html">Alternate content</iframe>
minimum height:300px - maximum height:500px


Example pagenew window