diff --git a/addons/web/static/src/css/base.css b/addons/web/static/src/css/base.css
index 23f91aec952..024ecbbb965 100644
--- a/addons/web/static/src/css/base.css
+++ b/addons/web/static/src/css/base.css
@@ -1,4 +1,4 @@
-@charset "UTF-8";
+@charset "utf-8";
 @font-face {
   font-family: "mnmliconsRegular";
   src: url("/web/static/src/font/mnmliconsv21-webfont.eot") format("eot");
@@ -1755,6 +1755,9 @@
 .openerp .oe_application .oe_form_sheet .ui-tabs {
   margin: 0 -16px;
 }
+.openerp .oe_application .oe_form_sheet .oe_notebook_page {
+  padding: 0 16px;
+}
 .openerp .oe_form td.oe_form_group_cell_label {
   border-right: 1px solid #dddddd;
   padding: 2px 0px 2px 0px;
@@ -1768,7 +1771,8 @@
   padding-left: 8px;
 }
 .openerp .oe_form .oe_form_group {
-  margin: 5px 0px 5px 0px;
+  width: 100%;
+  margin: 4px 0 4px 0;
 }
 .openerp .oe_form .oe_form_label_help[for], .openerp .oe_form .oe_form_label[for] {
   font-weight: bold;
@@ -1789,7 +1793,7 @@
 .openerp .oe_horizontal_separator {
   font-weight: bold;
   font-size: 20px;
-  margin: 20px 0px 10px 0px;
+  margin: 8px 0px 8px 0px;
   color: #aaaabb;
 }
 .openerp .oe_horizontal_separator:empty {
diff --git a/addons/web/static/src/css/base.sass b/addons/web/static/src/css/base.sass
index b63995b3e87..1d092ef041e 100644
--- a/addons/web/static/src/css/base.sass
+++ b/addons/web/static/src/css/base.sass
@@ -1394,6 +1394,8 @@ $colour4: #8a89ba
             @include box-shadow(0 0 10px rgba(0,0,0,0.3))
             .ui-tabs
                 margin: 0 -16px
+            .oe_notebook_page
+                padding: 0 16px
     // }}}
     // FormView.group {{{
     .oe_form
@@ -1407,7 +1409,8 @@ $colour4: #8a89ba
         td.oe_form_group_cell + .oe_form_group_cell
             padding-left: 8px
         .oe_form_group
-            margin: 5px 0px 5px 0px
+            width: 100%
+            margin: 4px 0 4px 0
     // }}}
     // FormView.label {{{
     .oe_form
@@ -1429,7 +1432,7 @@ $colour4: #8a89ba
     .oe_horizontal_separator
         font-weight: bold
         font-size: 20px
-        margin: 20px 0px 10px 0px
+        margin: 8px 0px 8px 0px
         color: #aab
     .oe_horizontal_separator:empty
         height: 5px