seamless - HTML Attribute for Iframes

The seamless attribute is a boolean attribute that tells the user agent that the IFRAME should be inserted into the parent document so that it appears seamlessly within the parent document.

This attribute is valid in HTML5.

• IFRAME

The seamless attribute is a boolean attribute. This means that it has no contents. If it is present in the element, it is applied, otherwise not.

Here is an example of an IFRAME with a seamless attribute.

<iframe seamless>
Your browser does not support iframes.
</iframe>

If the document is XHTML, then you need to include a value of seamless. For example:

<iframe seamless="seamless">

The seamless attribute is boolean and doesn't have any value.

• HTMl5
• XHTML5

HTML5

<doctype html>