diff --git a/scss/_navbar.scss b/scss/_navbar.scss
index 852328aca..177d5da07 100644
--- a/scss/_navbar.scss
+++ b/scss/_navbar.scss
@@ -176,6 +176,8 @@
 
         .navbar-collapse {
           display: flex !important; // stylelint-disable-line declaration-no-important
+          flex-basis: auto;
+          flex-grow: 1;
         }
 
         .navbar-toggler {