diff --git a/styles/simple.css b/styles/simple.css
index 7f6d085e..ace91dcf 100644
--- a/styles/simple.css
+++ b/styles/simple.css
@@ -322,11 +322,11 @@ table {border: 1px solid #7a7971;}
   height: 100%;
 }
 
-.sheet .window-content {overflow: hidden;}
-.sheet .window-content .sheet-header {overflow: hidden;}
-.sheet .window-content .sheet-tabs {overflow: hidden;}
-.sheet .window-content .sheet-body {overflow-y: scroll;}
-.sheet .window-content .sheet-body .tab {padding-bottom: 30px;}
+.rdd.sheet .window-content {overflow: hidden;}
+.rdd.sheet .window-content .sheet-header {overflow: hidden;}
+.rdd.sheet .window-content .sheet-tabs {overflow: hidden;}
+.rdd.sheet .window-content .sheet-body {overflow-y: scroll;}
+.rdd.sheet .window-content .sheet-body .tab {padding-bottom: 30px;}
 
 .editor {
   border: 2;