diff --git a/theme/formal_white/style/block.css b/theme/formal_white/style/block.css
index d3c4eb2e694..5b7647d85d4 100644
--- a/theme/formal_white/style/block.css
+++ b/theme/formal_white/style/block.css
@@ -39,7 +39,10 @@
 .block_navigation .block_tree .tree_item a:link,
 .block_navigation .block_tree .tree_item a:visited,
 .block_navigation .block_tree .tree_item a:active {color:#000;}
-
 .block_navigation .block_tree .tree_item {padding-left:19px}
 
+/* block_adminblock */
+.block_adminblock .content .singleselect {width: 100%;}
+.block_adminblock .content .singleselect {margin:0}
+
 .block.list_block .unlist > li > .column {margin-top:3px; margin-bottom:3px;}