html5
new Tags:
header, nav, article, section, aside, footer
https://gyazo.com/7e5ac6a2cba537d839e7cf3e87dfe31f
form:
new input types
color, date, datetime, email, month, number, search, tel, time, url, week
new attributes
autocomplete, autofocus, list, pattern, step, placeholder
media
audio,video, embed, source(for video and audio), track(..),