Remove top margin for sidebar #44
Remove top margin for sidebar #44

Previously the top margin was needed to offset the nav when it was
wrapping under the document.  Because the nav now renders above
the document on small screens, the top margin would leave 50px of
empty space that doesn't match the nav background color.

jupytercalpoly/jupyter-alabaster-theme,jupytercalpoly/jupyter-alabaster-theme,ellisonbg/jupyter-alabaster-theme,charnpreetsingh/jupyter-alabaster-theme,ellisonbg/jupyter-alabaster-theme,ellisonbg/jupyter-alabaster-theme,charnpreetsingh/jupyter-alabaster-theme,charnpreetsingh/jupyter-alabaster-theme,jupytercalpoly/jupyter-alabaster-theme