Merge pull request #2154 from pjackson28/master

Fixed tabs-style-6 positioned content properly (added more fluid grids support)
Merge pull request #2156 from pjackson28/master

Fixed remaining multimedia player height issue in #1861
Fixed middle mouse button issue in #1893.
Merge branch 'v3.0'
Merge branch 'master' of https://github.com/wet-boew/wet-boew