Make the prevent overlap logic a little smarter.
Make the prevent overlap logic a little smarter.

majidmosafer/jahad,modulexcite/explain-git-with-d3,bbw14/explain-git-with-d3,git-school/visualizing-git,djangocreation/explain-git-with-d3,Sfeir/explain-git-with-d3,zhengger/explain-git-with-d3,fend-classroom/explain-git-with-d3,adamcrews/explain-git-with-d3,zhengger/explain-git-with-d3,majidmosafer/jahad,bbw14/explain-git-with-d3,onlywei/explain-git-with-d3,djangocreation/explain-git-with-d3,git-school/visualizing-git,onlywei/explain-git-with-d3,kittitochp/explain-git-with-d3,zahrashokrollahi/explain-git-with-d3,eshimel/explain-git-with-d3,eshimel/explain-git-with-d3,kittitochp/explain-git-with-d3,Olipicus/explain-git-with-d3,fend-classroom/explain-git-with-d3,Olipicus/explain-git-with-d3,Sfeir/explain-git-with-d3,modulexcite/explain-git-with-d3,adamcrews/explain-git-with-d3,zahrashokrollahi/explain-git-with-d3