diff --git a/core/themes/seven/css/components/dropbuttons.css b/core/themes/seven/css/components/dropbuttons.css
index 1020ee7..3ad600e 100644
--- a/core/themes/seven/css/components/dropbuttons.css
+++ b/core/themes/seven/css/components/dropbuttons.css
@@ -114,6 +114,7 @@
   background-image:      -o-linear-gradient(top, #007bc6, #0071b8);
   background-image:   linear-gradient(to bottom, #007bc6, #0071b8);
   text-shadow: 0 1px hsla(0, 0%, 0%, 0.5);
+  position: relative;
 }
 .form-actions .dropbutton-multiple.open .dropbutton-widget {
   background-image: -webkit-linear-gradient(top, #007bc6, #0071b8);