diff --git a/paper-button.html b/paper-button.html
index dd74dc6..9737ffd 100644
--- a/paper-button.html
+++ b/paper-button.html
@@ -110,6 +110,15 @@
         @apply(--paper-button);
       }
 
+      :host::after {
+        content: '';
+        position: absolute;
+        top: -0.429em;
+        bottom: -0.429em;
+        left: 0;
+        right: 0;
+      }
+
       :host([hidden]) {
         display: none !important;
       }