Fix bug with the footer shadow showing through the item

Author: sindresorhus

app-template.css

@@ -301,6 +301,7 @@ label[for='toggle-all'] {
 	left: 0;
 	height: 50px;
 	z-index: -1;
+	overflow: hidden;
 	box-shadow: 0 1px 1px rgba(0, 0, 0, 0.3),
 				0 6px 0 -3px rgba(255, 255, 255, 0.8),
 				0 7px 1px -3px rgba(0, 0, 0, 0.3),