diff --git a/src/main/ui/static/css/index_register.css b/src/main/ui/static/css/index_register.css
index d16ae1285..4af0ed432 100644
--- a/src/main/ui/static/css/index_register.css
+++ b/src/main/ui/static/css/index_register.css
@@ -162,6 +162,9 @@
     unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2212, U+2215, U+E0FF, U+EFFD, U+F000;
 }
 
+html {
+    height: 100%
+}
 
 body {
     height: 100%;