Can I use... Support tables for HTML5, CSS3, etc

• https://caniuse.com/#feat=http3
• https://github.com/fyrd/caniuse/issues
• https://github.com/Fyrd/caniuse/blob/master/CONTRIBUTING.md#adding-a-feature
• https://caniuse.bitsofco.de/
• https://github.com/una/caniuse-component
• https://github.com/sgentle/caniuse-cmd
• http://doiuse.herokuapp.com/
• http://iwanttouse.com
• https://github.com/Fyrd/caniuse/wiki/Third-party-tools
• http://a.deveria.com
• https://github.com/fyrd/caniuse
• http://www.lensco.be/
• http://creativecommons.org/licenses/by/4.0/
• https://github.com/Fyrd/caniuse/issues
• https://github.com/Fyrd/caniuse/blob/master/CONTRIBUTING.md
• http://caniuse.com/issue-list
• http://tests.caniuse.com
• http://twitter.com/Fyrd
• http://twitter.com/Lensco
• https://github.com/Fyrd/caniuse/graphs/contributors
• http://gs.statcounter.com/
• https://browserstack.com
• https://www.patreon.com/join/caniuse
• http://www.patreon.com/oauth2/authorize?response_type=code&client_id=efdd32564c7459c2c0dcd644b984e6948070b23b72961a3b9fb32ab3ad797184&redirect_uri=https%3A%2F%2Fcaniuse.com
• http://caniuse.com/usage-table