fix style

assets/css/main.scss

@@ -152,11 +152,11 @@ body{
     font-size: 12px;
   }
 }
-//
-//h1 h2 h3{
-//  color: #333;
-//}
-//
+
+h1 h2 h3{
+  color: $common-color;
+}
+
 //h1{
 //  font-size: 34px;
 //}