diff --git a/addons/web/static/src/css/base.css b/addons/web/static/src/css/base.css
index 8234c26e507..3207e119555 100644
--- a/addons/web/static/src/css/base.css
+++ b/addons/web/static/src/css/base.css
@@ -2942,11 +2942,12 @@ div.ui-widget-overlay {
     display: block;
   }
   .openerp .oe_application .oe_form_sheet, .openerp .oe_application .oe_form_sheetbg {
-    border: none;
+    border: 0px !important;
+    box-shadow: 0px 0px 0px;
   }
-
-  .openerp div.oe_mail_wall {
-    overflow: hidden !important;
+  .openerp .oe_view_manager_current > .oe_view_manager_header {
+    border: 0px !important;
+    box-shadow: 0px 0px 0px;
   }
 
   .oe_mail .oe_mail_thread_msg .oe_mail_unread, .oe_mail_fetch_more {
@@ -2956,4 +2957,12 @@ div.ui-widget-overlay {
   .openerp {
     text-shadow: none;
   }
+
+  .text-core .text-wrap .text-arrow {
+    background: none;
+  }
+
+  .oe_m2o_drop_down_button img, .oe_form_field_one2many_list_row_add, a.oe_m2o_cm_button, a.oe_e {
+    display: none;
+  }
 }
diff --git a/addons/web/static/src/css/base.sass b/addons/web/static/src/css/base.sass
index 128fdf8834e..5832a7e2bdb 100644
--- a/addons/web/static/src/css/base.sass
+++ b/addons/web/static/src/css/base.sass
@@ -2326,13 +2326,19 @@ div.ui-widget-overlay
             display: block
         .oe_application
             .oe_form_sheet, .oe_form_sheetbg
-                border: none
-    .openerp div.oe_mail_wall
-        overflow: hidden !important
+                border: 0px !important
+                box-shadow: 0px 0px 0px
+        .oe_view_manager_current > .oe_view_manager_header
+            border: 0px !important
+            box-shadow: 0px 0px 0px
 
     .oe_mail .oe_mail_thread_msg .oe_mail_unread, .oe_mail_fetch_more
         display: none
     .openerp
         text-shadow: none
+    .text-core .text-wrap .text-arrow
+        background: none
+    .oe_m2o_drop_down_button img, .oe_form_field_one2many_list_row_add, a.oe_m2o_cm_button, a.oe_e
+        display: none
 // au BufWritePost,FileWritePost *.sass :!sass --style expanded --line-numbers <afile> > "%:p:r.css"
 // vim:tabstop=4:shiftwidth=4:softtabstop=4:fdm=marker: