Wider checklist cards on wide screens

sass/style.scss

@@ -770,6 +770,13 @@ footer {
 		}
 	}
 
+	.checklist {
+
+		.card {
+			width: 17em;
+		}
+	}
+
 	.stories .stories-list {
 		flex-direction: row;
 		align-items: stretch;