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CSS CSS Layout Techniques Float Layout The Float Clearfix

Edward Bryan Kene Morales
Edward Bryan Kene Morales
7,374 Points
Posted by Edward Bryan Kene Morales
Edward Bryan Kene Morales
7,374 Points

What the difference between .group:after and .group::after

So I am just curious why Guil is using .group::after in the video. This css is used in the video to clear the floats.

I am just curious because HTML5 Boilerplate uses .clearfix:after, please note that one ":" is only used.

Can somebody please shed me some light on this? Thanks! Will really appreciate it.

1 Answer

Parker Byrd
Parker Byrd
Courses Plus Student 17,716 Points

The ::after notation was introduced in CSS 3 in order to establish a discrimination between pseudo-classes and pseudo-elements. Browsers also accept the notation :after introduced in CSS 2. Before and After are pseudo-elements whereas something like :nth-of-type is a pseudo-class. Hope that helps!

Edward Bryan Kene Morales
Edward Bryan Kene Morales
7,374 Points
Edward Bryan Kene Morales
Edward Bryan Kene Morales
7,374 Points

Thanks Parker! Now it's clear for me :) Cheers!