deletions | additions       diff --git a/layout.md b/layout.md  index d973819..85e0181 100644  --- a/layout.md  +++ b/layout.md 
...
div_b_3_Guiding_Principles__.html  div_3_1_nbsp_The__.html  div_3_2_nbsp_The__.html  div_3_3_nbsp_The__.html