стили дополнительные

src/AppAssets2.php

@@ -13,6 +13,7 @@ class AppAssets2 extends AssetBundle
         'https://cdnjs.cloudflare.com/ajax/libs/fotorama/4.6.4/fotorama.css',
         'css/main.css',
         'css/main2.css',
+        'css/dev2.css',
     ];
 
     public $js = [

src/files/css/dev2.css

@@ -0,0 +1,7 @@
+/*
+@media (max-width: 400px) {
+    body {
+        padding-bottom: 420px; } }
+
+
+*/