diff --git a/paper-tabs.html b/paper-tabs.html
index 71ea723..bc504e1 100644
--- a/paper-tabs.html
+++ b/paper-tabs.html
@@ -178,11 +178,11 @@
 
       #selectionBar {
         position: absolute;
-        height: 2px;
+        height: 0;
         bottom: 0;
         left: 0;
         right: 0;
-        background-color: var(--paper-tabs-selection-bar-color, --paper-yellow-a100);
+        border-bottom: 2px solid var(--paper-tabs-selection-bar-color, --paper-yellow-a100);
           -webkit-transform: scale(0);
         transform: scale(0);
           -webkit-transform-origin: left center;