diff --git a/addons/web/static/src/css/base.css b/addons/web/static/src/css/base.css
index 168ba74bb46..7911f18276b 100644
--- a/addons/web/static/src/css/base.css
+++ b/addons/web/static/src/css/base.css
@@ -2036,6 +2036,7 @@ ul.oe-arrow-list {
 ul.oe-arrow-list li {
     display: inline-block;
     margin-left: -1em;
+    vertical-align: top;
 }
 ul.oe-arrow-list li span {
     vertical-align: top;