diff --git a/addons/web/static/src/css/base.css b/addons/web/static/src/css/base.css
index 56369e18ba9..8234c26e507 100644
--- a/addons/web/static/src/css/base.css
+++ b/addons/web/static/src/css/base.css
@@ -2944,4 +2944,16 @@ div.ui-widget-overlay {
   .openerp .oe_application .oe_form_sheet, .openerp .oe_application .oe_form_sheetbg {
     border: none;
   }
+
+  .openerp div.oe_mail_wall {
+    overflow: hidden !important;
+  }
+
+  .oe_mail .oe_mail_thread_msg .oe_mail_unread, .oe_mail_fetch_more {
+    display: none;
+  }
+
+  .openerp {
+    text-shadow: none;
+  }
 }
diff --git a/addons/web/static/src/css/base.sass b/addons/web/static/src/css/base.sass
index 0a3d94220c0..128fdf8834e 100644
--- a/addons/web/static/src/css/base.sass
+++ b/addons/web/static/src/css/base.sass
@@ -2327,6 +2327,12 @@ div.ui-widget-overlay
         .oe_application
             .oe_form_sheet, .oe_form_sheetbg
                 border: none
+    .openerp div.oe_mail_wall
+        overflow: hidden !important
 
+    .oe_mail .oe_mail_thread_msg .oe_mail_unread, .oe_mail_fetch_more
+        display: none
+    .openerp
+        text-shadow: none
 // au BufWritePost,FileWritePost *.sass :!sass --style expanded --line-numbers <afile> > "%:p:r.css"
 // vim:tabstop=4:shiftwidth=4:softtabstop=4:fdm=marker: