Similar to Tailwind_CSS

HTML email

Indexed Database API

Link relation

MHTML

Polymer (library)

Sencha Touch

HTML video

WHATWG

WebGL

WebRTC

XHTML Mobile Profile

HTML editor

Compatibility mode

C-HTML

Dynamic HTML

Column (typography)

Transclusion

HTML form

Document type declaration

Microformat

Meta element

Character entity reference

HTML element