fix logo shadow

Author: LauraBrandt

css/sections/header.css

@@ -16,7 +16,9 @@
   .logo {
     margin-top: 13px;
     width: 184px;
-    box-shadow: 0 2px 24px 0 rgba(0, 0, 0, 0.24);
+    filter: drop-shadow(10px 10px 25px rgba(0,0,0,0.24));
+    -webkit-filter: drop-shadow(10px 10px 25px rgba(0,0,0,0.24));
+    -moz-filter: drop-shadow(10px 10px 25px rgba(0,0,0,0.24));
   }
 
   .navigation {

header.php

@@ -13,7 +13,7 @@
 
   <header class="header">
     <a href="<?php echo site_url(); ?>">
-      <img class="logo" src="<?php echo get_theme_file_uri('/images/logo.png'); ?>" alt="Code for Durham logo">
+      <img class="logo" src="<?php echo get_theme_file_uri('/images/logo/logo_2X.png'); ?>" alt="Code for Durham logo">
     </a>
     <nav class="navigation">
       <ul>