Revert "updated navigation to fit width"

The width was actually supposed to be 600px

This reverts commit 15a6f76c2157b3f0f1625ae93482cbdfb426df3e.
Fix button boxes

Everything with our borders needs an inner element like a <p> because we can't
do the padding on the box, as the borders won't get it.
Make the padding in the footer smaller and center the links