An iframe is used to display a web page within a web page.
An HTML iframe is defined with the <iframe> tag:
<iframe src="URL"></iframe>The src attribute specifies the URL (web address) of the inline frame page.
Use the height and width attributes to specify the size of the iframe.
The height and width are specified in pixels by default:
<iframe src="demo_iframe.htm" height="200" width="300"></iframe>The height and width can also be specified in percent:
<iframe src="demo_iframe.htm" height="100%" width="100%"></iframe>Or you can use CSS to set the height and width of the iframe:
<iframe src="demo_iframe.htm" style="height:200px;width:300px;"></iframe>By default, an iframe has a border around it.
To remove the border, add the style attribute and use the CSS border property:
<iframe src="demo_iframe.htm" style="border:none;"></iframe>With CSS, you can also change the size, style and color of the iframe's border:
<iframe src="demo_iframe.htm" style="border:2px solid red;"></iframe>An iframe can be used as the target frame for a link.
The target attribute of the link must refer to the name attribute of the iframe:
<iframe src="demo.html" name="iframe_a"></iframe>
<p><a href="https://www.learncomputer.in" target="iframe_a">Learncomputer.in</a></p>