diff --git a/addons/event/static/src/css/event.css b/addons/event/static/src/css/event.css
index f49f5474fa6..ff5bfaba19b 100644
--- a/addons/event/static/src/css/event.css
+++ b/addons/event/static/src/css/event.css
@@ -14,11 +14,13 @@
   border-bottom-left-radius:3px;
   border-bottom-right-radius:3px;
   font-size: 12px;
+  border-collapse: separate;
   text-align: center;
   font-weight: bold;
   color: #8A89BA;
   -webkit-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
   background-color: #FFFFFF;
+  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);  
 }
 .oe_event_month_year{
   border-bottom-left-radius:3px;
diff --git a/addons/hr/static/src/css/hr.css b/addons/hr/static/src/css/hr.css
index 00ef92c0fd8..f395f9939e5 100644
--- a/addons/hr/static/src/css/hr.css
+++ b/addons/hr/static/src/css/hr.css
@@ -18,10 +18,11 @@
   -o-border-radius: 3px;
   -ms-border-radius: 3px;
   border-radius: 3px;
+  border-collapse: separate;
   -moz-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
   -webkit-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
   -o-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
-  -box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
+  box-shadow: 0 1px 4px 3px rgba(0, 0, 0, 0.4);
 }
 
 .oe_employee_picture {
diff --git a/addons/mail/static/src/css/mail_group.css b/addons/mail/static/src/css/mail_group.css
index b700cb8c80f..78467245557 100644
--- a/addons/mail/static/src/css/mail_group.css
+++ b/addons/mail/static/src/css/mail_group.css
@@ -48,10 +48,11 @@
   -o-border-radius: 3px;
   -ms-border-radius: 3px;
   border-radius: 3px;
+  border-collapse: separate;
   -moz-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
   -webkit-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
+  box-shadow: 0 1px 4px 3px rgba(0, 0, 0, 0.4);
   -o-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
-  -box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
 }
 
 .oe_group_photo {