Order summary card with Grid

While i built project, i struggled with changing font's color of a elements, that default have a underline and purple text. I used .change-plan-link:link putting color property here. But there wasn't color changes. Then, I put color into .change-plan-link:visible selector and here worked color changing. I don't know why i didn't get along with :link. Could you share is there sense to use header putting here img.

I used Grid to make plan elements inline