Merge pull request #5742 from quigleyj97/feature/fix-docs-screenshot

Fix missing declaration block in docs CSS rules

docs/source/_static/custom.css

@@ -15,7 +15,6 @@ div.wy-side-nav-search {
   height: 1em !important;
 }
 
-.wy
 /* Elevation
   *
   * We style box-shadows using Material Design's idea of elevation. These particular numbers are taken from here: