diff --git a/packages/docusaurus-theme-classic/src/theme/DocSidebar/Desktop/styles.module.css b/packages/docusaurus-theme-classic/src/theme/DocSidebar/Desktop/styles.module.css
index e4d472476a75..24ee99e6ef36 100644
--- a/packages/docusaurus-theme-classic/src/theme/DocSidebar/Desktop/styles.module.css
+++ b/packages/docusaurus-theme-classic/src/theme/DocSidebar/Desktop/styles.module.css
@@ -9,7 +9,7 @@
   .sidebar {
     display: flex;
     flex-direction: column;
-    height: 100%;
+    height: 100vh;
     padding-top: var(--ifm-navbar-height);
     width: var(--doc-sidebar-width);
   }
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..d6381f96f2ae 100644
--- a/packages/docusaurus-theme-classic/src/theme/Layout/styles.module.css
+++ b/packages/docusaurus-theme-classic/src/theme/Layout/styles.module.css
@@ -14,6 +14,12 @@ body {
   flex: 1 0 auto;
 }
 
+.footer {
+  position: absolute;
+  bottom: 0;
+  width: 100%;
+}
+
 /* Docusaurus-specific utility class */
 :global(.docusaurus-mt-lg) {
   margin-top: 3rem;