seamless attribute for iframes

seamless attribute for iframes

The seamless attribute makes an iframe's contents actually part of a page, and adopts the styles from its hosting page. The attribute has been removed from both the WHATWG and the W3C HTML5 specifications.

Spec https://www.w3.org/TR/2011/WD-html5-20110525/the-iframe-element.html#attr-iframe-seamless
Status Unofficial / Note
IE Edge Firefox Ch