fix bug 992653 - Prevent adv menu from going offscreen on mobile
Unprefix border-radius styles
fix bug 926337 - button contrast improvement
Merge pull request #2300 from darkwing/unprefix-border-radius

Unprefix border-radius styles
Merge pull request #2301 from darkwing/926337-contrast

fix bug 926337 - button contrast improvement
Merge pull request #2294 from darkwing/offscreen-menu-992653

fix bug 992653 - Prevent adv menu from going offscreen on mobile