@host -> :host

Author: dfreedm

elements/slide-show.html

@@ -18,10 +18,8 @@
 <polymer-element name="slide-show">
   <template>
     <style>
-      @host {
-        :scope; {
-          display: block;
-        }
+      :host {
+        display: block;
       }
 
       #sidebar {