diff --git a/client/css/core-forms.styl b/client/css/core-forms.styl
index 06a5442..5800226 100644
--- a/client/css/core-forms.styl
+++ b/client/css/core-forms.styl
@@ -256,6 +256,7 @@ input::-moz-focus-inner
         line-height: 140%
         text-align: center
         cursor: pointer
+        overflow: hidden
         word-wrap: break-word
     input
         margin-top: 0.5em