diff --git a/css/core.css b/css/core.css
index ea8c678c5419a3266c6395cbd6391fafc643344a..99572b9d35b2d4c54d34490b525bad2ddc78770c 100644
--- a/css/core.css
+++ b/css/core.css
@@ -1,4 +1,4 @@
-body{
+html, body, #wrapper{
 	height: 100%;
 }
 #input-div, #output-div{