diff --git a/GalleryShare/Embed/Theme.css b/GalleryShare/Embed/Theme.css
index c6192ea..85d91e0 100644
--- a/GalleryShare/Embed/Theme.css
+++ b/GalleryShare/Embed/Theme.css
@@ -8,7 +8,7 @@
     --figcaption-bg-position-y: 0.7em;
 }
 
-html, body { font-size: 100%; }
+html, body { min-height: 100%; font-size: 100%; }
 body
 {
     margin: 0;