diff --git a/core/modules/system/css/system.module.css b/core/modules/system/css/system.module.css
index 3227d50..261abf8 100644
--- a/core/modules/system/css/system.module.css
+++ b/core/modules/system/css/system.module.css
@@ -246,7 +246,9 @@ tr .ajax-progress-throbber .throbber {
 /**
  * Inline items.
  */
-.container-inline div,
+.container-inline div {
+  display: inline-block;
+}
 .container-inline label {
   display: inline;
 }