diff --git a/webroot/styles/app.css b/webroot/styles/app.css
index d32d5918e..c6370ea1c 100644
--- a/webroot/styles/app.css
+++ b/webroot/styles/app.css
@@ -200,7 +200,7 @@ header {
   position: fixed;
   bottom: 0;
   width: 100%;
-  height: auto;
+  height: 100%;
 }
 
 .single-col.chat #video-container,