CSS Clearfix How does Clearfix work in CSS with Examples?
CSS - Clearfix - 30 seconds of code
What is a clearfix? - GeeksforGeeks
Clear:both, Clearfix, Floats…Oh My!
Clearfix example
clearfixと.clearfix:afterのそれぞれの意味と違い、HTMLコードのどこに装飾がかかっているのかを伺いたいです。
What is the best way to explain the CSS clearfix? - Quora
CSS floats and Clearfix - DEV Community
Mastering Web Layouts: A Guide to CSS Floats
CSS Floats & Clearfix
clearfix approach to handling .nav-tabs floats causes flow issues