diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index cfd375d03..769b5f0c9 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -44,6 +44,7 @@ Changelog
  * Fix: Bypass select/prefetch related optimisation on `update_index` for `ParentalManyToManyField` to fix crash (Tim Kamanin)
  * Fix: 'Add user' is now rendered as a button due to the use of quotes within translations (Benoît Vogel)
  * Fix: Menu icon no longer overlaps with title in Modeladmin on mobile (Coen van der Kamp)
+ * Fix: Background color overflow within the Wagtail documentation (Sergey Fedoseev)
 
 
 2.0.1 (04.04.2018)
diff --git a/CONTRIBUTORS.rst b/CONTRIBUTORS.rst
index 7ddd1f45c..44507382f 100644
--- a/CONTRIBUTORS.rst
+++ b/CONTRIBUTORS.rst
@@ -293,6 +293,7 @@ Contributors
 * Coen van der Kamp
 * Sander Tuit
 * Tim Kamanin
+* Sergey Fedoseev
 
 Translators
 ===========
diff --git a/docs/_static/css/custom.css b/docs/_static/css/custom.css
index db8e7f6b5..6653edfa9 100644
--- a/docs/_static/css/custom.css
+++ b/docs/_static/css/custom.css
@@ -1,11 +1,8 @@
-html  {
-    background-color: #e6e6e6; /*$color-grey-4*/
-}
-
 body.wy-body-for-nav {
     font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Helvetica, Arial, sans-serif;
     line-height: 1.5em;
     color: #333; /*$color-grey-1-1*/
+    background-color: #e6e6e6; /*$color-grey-4*/
 }
 
 div.wy-nav-side {
diff --git a/docs/releases/2.1.rst b/docs/releases/2.1.rst
index 59cede477..78f5dc2c3 100644
--- a/docs/releases/2.1.rst
+++ b/docs/releases/2.1.rst
@@ -62,6 +62,7 @@ Bug fixes
  * Bypass select/prefetch related optimisation on ``update_index`` for ``ParentalManyToManyField`` to fix crash (Tim Kamanin)
  * 'Add user' is now rendered as a button due to the use of quotes within translations (Benoît Vogel)
  * Menu icon no longer overlaps with title in Modeladmin on mobile (Coen van der Kamp)
+ * Background color overflow within the Wagtail documentation (Sergey Fedoseev)
 
 
 Upgrade considerations