diff --git a/CHANGES b/CHANGES
index 07846fede..cc9c98e8b 100644
--- a/CHANGES
+++ b/CHANGES
@@ -16,6 +16,8 @@ Features added
 Bugs fixed
 ----------
 
+* #1125: html theme: scrollbar is hard to see on classic theme and macOS
+
 Testing
 --------
 
diff --git a/sphinx/themes/classic/static/classic.css_t b/sphinx/themes/classic/static/classic.css_t
index 1ee0d2298..a062d6d14 100644
--- a/sphinx/themes/classic/static/classic.css_t
+++ b/sphinx/themes/classic/static/classic.css_t
@@ -13,6 +13,11 @@
 
 /* -- page layout ----------------------------------------------------------- */
 
+html {
+    /* CSS hack for macOS's scrollbar (see #1125) */
+    background-color: #FFFFFF;
+}
+
 body {
     font-family: {{ theme_bodyfont }};
     font-size: 100%;