[MD settings] removing .css files from internet settings

chrome/browser/resources/settings/internet_page/internet_known_networks_page.html

 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-flex-layout/classes/iron-flex-layout.html">
 <link rel="import" href="chrome://resources/cr_elements/network/cr_network_list.html">
 <link rel="import" href="chrome://md-settings/settings_shared_css.html">
 
 <dom-module id="settings-internet-known-networks-page">
-  <link rel="import" type="css" href="internet_known_networks_page.css">
   <template>
-    <style include="settings-shared"></style>
+    <style include="settings-shared">
+      #outerDiv {
+        margin: 0 40px;
+      }
+
+      #headerDiv {
+        background-color: grey;
+        padding: 4px;
+      }
+
+      #headerDiv span {
+        color: white;
+        padding: 0 8px;
+      }
+
+      #headerDiv span.button {
+        text-align: center;
+        width: 60px;
+      }
+    </style>
     <div class="layout vertical">
       <div id="outerDiv" class="layout vertical">
         <div id="headerDiv" class="layout horizontal">
           <span class="flex">Network</span>
           <span class="button">Shared</span>
           <span class="button">Preferred</span>
           <span class="button">Remove</span>
         </div>
         <cr-network-list id="networkList" class="layout vertical"
             list-type="known"
             max-height="[[maxHeight]]"
             networks="[[networkStateList]]"
             on-remove="onRemove_"
             on-selected="onListItemSelected_"
             on-toggle-preferred="onTogglePreferred_">
         </cr-network-list>
       </div>
     </div>
   </template>
   <script src="internet_known_networks_page.js"></script>
 </dom-module>