Solution with Sass

Hello!

This is a super easy fix: all you need to do is use an after pseduoclass, you don't even need the before.

Just do feature-box::after { content: ''; position: absolute; height: 5px; width: 100% }.

Now just put the appropriate color for appropriate card.

Hope that helps :)

Hey Ruben.

The issue occurs because you are applying border to ::before pseudo element, leaving the background color transparent. Adding background-color property with the same color as border fills in that empty gap.

I would remove border and border-color properties completely and just add background-color with specific height. It will give the desired effect without any issues :)