https://developer.mozilla.org/ko/
MDN Web Docs
The MDN Web Docs site provides information about Open Web technologies including HTML, CSS, and APIs for both Web sites and progressive web apps.
developer.mozilla.org
웹 사이트 html 태그들 확인 가능
CSS Reference
CSS Reference is a free visual guide to CSS. It features the most popular properties, and explains them with illustrated and animated examples.
cssreference.io
적용 가능한 속성값 확인
Can I use... Support tables for HTML5, CSS3, etc
caniuse.com
새로운 기능이 모든 브라우저에서 호환되는지 검사. (mdn도 가능)
https://www.colorion.co/popular
Colorion
Curated Color Palettes with Search and Tags Support
www.colorion.co
색 조합
Flexbox Froggy
A game for learning CSS flexbox
flexboxfroggy.com
flexbox 속성 배우기 게임
CSS-Tricks
CSS-Tricks is a website about websites.
css-tricks.com
CSS 속성 값 볼 수 있는 사이트
Font Awesome
The internet's icon library + toolkit. Used by millions of designers, devs, & content creators. Open-source. Always free. Always awesome.
fontawesome.com
아이콘
https://fonts.google.com/?category=Serif,Sans+Serif,Display,Monospace
Browse Fonts - Google Fonts
Making the web more beautiful, fast, and open through great typography
fonts.google.com
폰트, 아이콘