diff --git a/css/index.styl b/css/index.styl
index 0f8a3d5..ebcafc6 100644
--- a/css/index.styl
+++ b/css/index.styl
@@ -60,6 +60,7 @@ body {
 .container {
     display: table-row;
     vertical-align: center;
+    height: 100%;
 }
 
 .page {