diff --git a/assets/sass/base/document/_document.scss b/assets/sass/base/document/_document.scss
index 608a356..64bcd1b 100644
--- a/assets/sass/base/document/_document.scss
+++ b/assets/sass/base/document/_document.scss
@@ -18,6 +18,8 @@ html {
   min-height: 100%;
   // Use the saner border-box model.
   box-sizing: border-box;
+  // Use smooth scrolling.
+  scroll-behavior: smooth;
 
   @include respond-to(xxl) {
     @include define-type-sizing($base-font-size-2, $base-line-height-2);