diff --git a/paper-button.html b/paper-button.html
index a39814e..6adc2cb 100644
--- a/paper-button.html
+++ b/paper-button.html
@@ -116,6 +116,7 @@
       ::content > a {
         height: 100%;
         padding: 0.7em 0.57em;
+        margin: -0.7em -0.57em;
         /* flex */
         -ms-flex: 1 1 0.000000001px;
         -webkit-flex: 1;