Learning CSS3 and SASS
2.Understanding Flexbox: Everything you need to know
The Most Popular Navigation Bars created with Flexbox
The Ultimate Guide to FlexboxLearning Through Examples
Tools for Cubic Bezier CSS
Tools for Easing Function
Web for Creative Tools
4.Transition MDN
5.High Performance Animations
6. Transition and Transform for Beginner
7. CSS trick Flex Grow
Callback Function Javascript
Fetch Documentation
Closure Javascript