diff --git a/mail/templates/default/app.css b/mail/templates/default/app.css
index bff40a8794..93c3aa9575 100644
--- a/mail/templates/default/app.css
+++ b/mail/templates/default/app.css
@@ -961,4 +961,6 @@ img.smime_cert_unknownemail {
 
 #mail-compose_subject {
 	padding: 10px 0 10px 0;
-}
\ No newline at end of file
+}
+div#mail-index_nm.splitter-pane {min-height: 100px;}
+#mail-index_mailSplitter .splitter-bar-horizontal {background: white;}
\ No newline at end of file
diff --git a/mail/templates/mobile/app.css b/mail/templates/mobile/app.css
index 5ca3884e37..f53e17ddd1 100644
--- a/mail/templates/mobile/app.css
+++ b/mail/templates/mobile/app.css
@@ -949,6 +949,12 @@ img.smime_cert_unknownemail {
 #mail-compose_subject {
   padding: 10px 0 10px 0;
 }
+div#mail-index_nm.splitter-pane {
+  min-height: 100px;
+}
+#mail-index_mailSplitter .splitter-bar-horizontal {
+  background: white;
+}
 #popupMainDiv {
   padding: 5px;
 }
diff --git a/mail/templates/pixelegg/app.css b/mail/templates/pixelegg/app.css
index 79b9bb5206..199b02d26e 100755
--- a/mail/templates/pixelegg/app.css
+++ b/mail/templates/pixelegg/app.css
@@ -937,6 +937,12 @@ img.smime_cert_unknownemail {
 #mail-compose_subject {
   padding: 10px 0 10px 0;
 }
+div#mail-index_nm.splitter-pane {
+  min-height: 100px;
+}
+#mail-index_mailSplitter .splitter-bar-horizontal {
+  background: white;
+}
 #popupMainDiv {
   padding: 5px;
 }