diff --git a/addons/web/static/src/css/ie.css b/addons/web/static/src/css/ie.css
index f628ed1213d..a547120033e 100644
--- a/addons/web/static/src/css/ie.css
+++ b/addons/web/static/src/css/ie.css
@@ -24,9 +24,6 @@
 }
 
 /** web_kanban */
-:root .openerp .oe_kanban_view .oe_kanban_group_title_vertical {
-  writing-mode: lr-tb;
-}
 .openerp .oe_kanban_column_cards {
   min-height: 80px;
 }
diff --git a/addons/web_kanban/static/src/css/kanban.css b/addons/web_kanban/static/src/css/kanban.css
index fbda6d3e4c5..0cf725881a2 100644
--- a/addons/web_kanban/static/src/css/kanban.css
+++ b/addons/web_kanban/static/src/css/kanban.css
@@ -190,7 +190,6 @@
   color: #666666;
 }
 .openerp .oe_kanban_view .oe_kanban_group_title_vertical {
-  writing-mode: tb-rl;
   -webkit-transform: rotate(90deg);
   -moz-transform: rotate(90deg);
   -o-transform: rotate(90deg);
@@ -671,7 +670,6 @@
   display: inline-block !important;
 }
 .openerp_ie .oe_kanban_view .oe_kanban_group_title_vertical {
-  -ms-writing-mode: lr-tb !important;
   background: #f0eeee;
 }
 .openerp_ie .oe_kanban_view.oe_kanban_grouped .oe_kanban_group_header {
diff --git a/addons/web_kanban/static/src/css/kanban.sass b/addons/web_kanban/static/src/css/kanban.sass
index 9d329653ce6..76e6728f10a 100644
--- a/addons/web_kanban/static/src/css/kanban.sass
+++ b/addons/web_kanban/static/src/css/kanban.sass
@@ -203,7 +203,6 @@
     .oe_kanban_group_title_undefined
         color: #666666
     .oe_kanban_group_title_vertical
-        writing-mode: tb-rl
         -webkit-transform: rotate(90deg)
         -moz-transform: rotate(90deg)
         -o-transform: rotate(90deg)
@@ -567,7 +566,6 @@
     .oe_kanban_group_header.oe_kanban_group_folded .oe_kanban_group_title_vertical
         display: inline-block !important
     .oe_kanban_group_title_vertical
-        -ms-writing-mode: lr-tb !important
         background: rgb(240, 238, 238)
     &.oe_kanban_grouped
         .oe_kanban_group_header