Anchor tag links not working properly

If your website has a fixed header you may have noticed that anchor tag links don’t work perfectly. This happened to me also but thanks to Adrian Gordon I finally figured out why and how to fix it. When you use a fixed header you have to add the following to your css :

:target:before { content:""; display:block; height:90px; /* fixed header height*/ margin:-90px 0 0; /* negative fixed header height */ }