Try another fix

HTML5 still had the same issue with spacing.

Author: agjohnson

sphinx_rtd_theme/static/css/theme.css

@@ -152,11 +152,7 @@
       background: transparent !important
       border-color: rgba(0, 0, 0, 0.1) !important
 
-  // TOC wrapper can be outside a section
-  .toctree-wrapper ul
-    @extend .wy-plain-list-disc
-
-  .section, section
+  .section, section, .toctree-wrapper
     ul
       @extend .wy-plain-list-disc
     ol.loweralpha, ol.loweralpha > li