diff --git a/addons/web/static/src/less/model_field_selector.less b/addons/web/static/src/less/model_field_selector.less
index 124c15cb8e5..aee5bd17867 100644
--- a/addons/web/static/src/less/model_field_selector.less
+++ b/addons/web/static/src/less/model_field_selector.less
@@ -7,6 +7,10 @@
         .o-flex-flow(row, wrap);
         .o-align-items(center);
         height: 100%;
+        min-height: 20px; // needed when there is no value in it and used standalone
+        &:active, &:focus, &:active:focus {
+            outline: none;
+        }
 
         > .o_field_selector_chain_part {
             padding: 0px 1px;