Fix whitespace in CSS

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

_shared_assets/static/custom.css

@@ -2,16 +2,16 @@
  * FIX THE DESIGN OF THE RTD THEME
  */
 
- /* NC blue */
- .wy-side-nav-search {
-	 background-color: #0082c9;
- }
+/* NC blue */
+.wy-side-nav-search {
+	background-color: #0082c9;
+}
 
 /* Remove unwanted data on the bottom left sidebar */
 .rst-versions.shift-up .rst-other-versions > dl:not(:nth-child(1)),
 .rst-versions.shift-up .rst-other-versions > a,
 .rst-versions.shift-up .rst-other-versions > hr {
- 	display:none
+	display:none
 }
 .rst-versions.shift-up .rst-other-versions {
 	color: transparent;