diff --git a/addons/web/static/src/css/base.css b/addons/web/static/src/css/base.css
index 28bcb85dc44..e1b70932905 100644
--- a/addons/web/static/src/css/base.css
+++ b/addons/web/static/src/css/base.css
@@ -659,7 +659,7 @@
   position: absolute;
   top: 26px;
   left: 0;
-  z-index: 1;
+  z-index: 3;
   margin: 0;
   padding: 0;
   border: 1px solid #afafb6;
@@ -1158,7 +1158,7 @@
   color: white;
   padding: 2px 4px;
   margin: 1px 6px 0 0;
-  border: 1px solid lightgrey;
+  border: 1px solid lightGray;
   text-shadow: 0 1px 1px rgba(0, 0, 0, 0.2);
   -moz-border-radius: 4px;
   -webkit-border-radius: 4px;
@@ -1183,7 +1183,7 @@
   transform: scale(1.1);
 }
 .openerp .oe_secondary_submenu .oe_active {
-  border-top: 1px solid lightgrey;
+  border-top: 1px solid lightGray;
   border-bottom: 1px solid #dedede;
   text-shadow: 0 1px 1px rgba(0, 0, 0, 0.2);
   -moz-box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2), inset 0 -1px 3px rgba(40, 40, 40, 0.2);
@@ -2053,7 +2053,7 @@
 }
 .openerp .oe_form .oe_form_label_help[for] span, .openerp .oe_form .oe_form_label[for] span {
   font-size: 80%;
-  color: darkgreen;
+  color: darkGreen;
   vertical-align: top;
   position: relative;
   top: -4px;
diff --git a/addons/web/static/src/css/base.sass b/addons/web/static/src/css/base.sass
index 73a7c8d39e8..930a14d1c8b 100644
--- a/addons/web/static/src/css/base.sass
+++ b/addons/web/static/src/css/base.sass
@@ -563,7 +563,7 @@ $sheet-max-width: 860px
         position: absolute
         top: 26px
         left: 0
-        z-index: 1
+        z-index: 3
         margin: 0
         padding: 0
         border: 1px solid $tag-border