Not sure what this commit is for...
Removed some experiment files that I no longer need.
New branch to test PHP header and footer and using PHP with HAML. Have created a new 'index.php' file, connected it to 'index.html.haml', and inserted PHP code for header and footer.
Changes with with mentor Anthony Bruno, solvin' my problems
Changed all em values to rem values, and changed media query screen widths from pixel to rem values.
Added box shadows to header and a couple of footer elements.
Changed mobile nav link bg to make an illusion of padding (removed bg color in favor of top/bottom borders). The highlighted portions jump a bit when active for some reason. Might be a javascript problem.