diff --git a/theme/boost/scss/preset-default.scss b/theme/boost/scss/preset-default.scss
index c8b74710285..cd1fc77798b 100644
--- a/theme/boost/scss/preset-default.scss
+++ b/theme/boost/scss/preset-default.scss
@@ -219,22 +219,6 @@ $breadcrumb-divider-rtl: "/" !default;
     }
 }
 
-/**
- * Style for content title.
- */
-#region-main {
-    h2 {
-        border-bottom: $border-width solid $table-border-color;
-        padding-bottom: $spacer;
-        margin-bottom: $spacer;
-    }
-    .page-header-image + .page-header-headings h2 {
-        /* No border when there is an image next to the heading. */
-        border-bottom: 0;
-        padding-bottom: 0;
-    }
-}
-
 /**
  * Form styles.
  */