max-width: ***; min-width: ***;

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

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

iframe {
max-width: 500px;
min-width: 400px;

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


<title>TAG index</title>

<style type="text/css">

iframe {
width: 100%;
height: 150px;
max-width: 600px;
min-width: 500px;



<p>minimum width:500px - maximum width:600px</p>

<p><iframe src="example.html">Alternate content</iframe></p>


Example pagenew window