diff --git a/packages/docusaurus-theme-classic/src/theme/Layout/styles.module.css b/packages/docusaurus-theme-classic/src/theme/Layout/styles.module.css
index b667fe7911e9..b39130ac40b8 100644
--- a/packages/docusaurus-theme-classic/src/theme/Layout/styles.module.css
+++ b/packages/docusaurus-theme-classic/src/theme/Layout/styles.module.css
@@ -10,6 +10,10 @@ body {
   height: 100%;
 }
 
+button {
+  margin: 0;
+}
+
 .mainWrapper {
   flex: 1 0 auto;
 }