Options: Style cleanup - id attribute first.

chrome/browser/resources/options/content_settings.html

-<div class="page" id="content-settings-page" hidden>
+<div id="content-settings-page" class="page" hidden>
   <h1 i18n-content="contentSettingsPage"></h1>
   <!-- Cookie filter tab contents -->
   <section>
     <h3 i18n-content="cookies_tab_label"></h3>
     <div>
       <div class="radio">
         <label>
           <input type="radio" name="cookies" value="allow">
           <span i18n-content="cookies_allow"></span>
         </label>
       </div>
       <div class="radio">
         <label>
           <input type="radio" name="cookies" value="session">
           <span i18n-content="cookies_session_only"></span>
         </label>
       </div>
       <div class="radio">
         <label>
           <input type="radio" name="cookies" value="block">
           <span i18n-content="cookies_block"></span>
         </label>
       </div>
-
       <div class="checkbox">
         <label>
           <input id="block-third-party-cookies"
               pref="profile.block_third_party_cookies" type="checkbox">
           <span i18n-content="cookies_block_3rd_party"></span>
         </label>
       </div>
       <div class="checkbox">
         <label>
           <input id="clear-cookies-on-exit"
               pref="profile.clear_site_data_on_exit" type="checkbox">
           <span i18n-content="cookies_lso_clear_when_close"
               class="clear-plugin-lso-data-enabled"></span>
           <span i18n-content="cookies_clear_when_close"
               class="clear-plugin-lso-data-disabled"></span>
         </label>
       </div>
-
       <button class="exceptions-list-button" contentType="cookies"
           i18n-content="manage_exceptions"></button>
       <button id="show-cookies-button"
           i18n-content="cookies_show_cookies"></button>
    </div>
   </section>
-
   <!-- Image filter -->
   <section>
     <h3 i18n-content="images_tab_label"></h3>
     <div>
       <div class="radio">
         <label>
           <input type="radio" name="images" value="allow">
           <span i18n-content="images_allow"></span>
         </label>
       </div>
       <div class="radio">
         <label>
           <input type="radio" name="images" value="block">
           <span i18n-content="images_block"></span>
         </label>
       </div>
-
       <button class="exceptions-list-button" contentType="images"
           i18n-content="manage_exceptions"></button>
     </div>
   </section>
-
   <!-- JavaScript filter -->
   <section>
     <h3 i18n-content="javascript_tab_label"></h3>
     <div>
       <div class="radio">
         <label>
           <input type="radio" name="javascript" value="allow">
           <span i18n-content="javascript_allow"></span>
         </label>
       </div>
       <div class="radio">
         <label>
           <input type="radio" name="javascript" value="block">
           <span i18n-content="javascript_block"></span>
         </label>
       </div>
-
       <button class="exceptions-list-button" contentType="javascript"
           i18n-content="manage_exceptions"></button>
     </div>
   </section>
-
   <!-- Plug-ins filter -->
   <section>
     <h3 i18n-content="plugins_tab_label"></h3>
     <div>
       <div class="radio">
         <label>
           <input type="radio" name="plugins" value="allow">
           <span i18n-content="plugins_allow"></span>
         </label>
       </div>
-      <div class="radio" id="click_to_play">
+      <div id="click_to_play" class="radio">
         <label>
           <input type="radio" name="plugins" value="ask">
           <span i18n-content="plugins_ask"></span>
         </label>
       </div>
       <div class="radio">
         <label>
           <input type="radio" name="plugins" value="block">
           <span i18n-content="plugins_block"></span>
         </label>
       </div>
-
       <button class="exceptions-list-button" contentType="plugins"
           i18n-content="manage_exceptions"></button>
       <a id="plugins-tab" href="about:plugins"
           i18n-content="disable_individual_plugins" target="_blank">
       </a>
     </div>
   </section>
-
   <!-- Pop-ups filter -->
   <section>
     <h3 i18n-content="popups_tab_label" class="content-settings-header"></h3>
     <div>
       <div class="radio">
         <label>
           <input type="radio" name="popups" value="allow">
           <span i18n-content="popups_allow"></span>
         </label>
       </div>
       <div class="radio">
         <label>
           <input type="radio" name="popups" value="block">
           <span i18n-content="popups_block"></span>
         </label>
       </div>
-
       <button class="exceptions-list-button" contentType="popups"
           i18n-content="manage_exceptions"></button>
     </div>
   </section>
-
   <!-- Location filter -->
   <section>
     <h3 i18n-content="location_tab_label"></h3>
     <div>
       <div class="radio">
         <label>
           <input type="radio" name="location" value="allow">
           <span i18n-content="location_allow"></span>
         </label>
       </div>
       <div class="radio">
         <label>
           <input type="radio" name="location" value="ask">
           <span i18n-content="location_ask"></span>
         </label>
       </div>
       <div class="radio">
         <label>
           <input type="radio" name="location" value="block">
           <span i18n-content="location_block"></span>
         </label>
       </div>
-
       <button class="exceptions-list-button" contentType="location"
           i18n-content="manage_exceptions"></button>
     </div>
   </section>
-
   <!-- Notifications filter tab contents -->
   <section>
     <h3 i18n-content="notifications_tab_label"></h3>
     <div>
       <div class="radio">
         <label>
           <input type="radio" name="notifications" value="allow">
           <span i18n-content="notifications_allow"></span>
         </label>
       </div>
       <div class="radio">
         <label>
           <input type="radio" name="notifications" value="ask">
           <span i18n-content="notifications_ask"></span>
         </label>
       </div>
       <div class="radio">
         <label>
           <input type="radio" name="notifications" value="block">
           <span i18n-content="notifications_block"></span>
         </label>
       </div>
-
       <button class="exceptions-list-button" contentType="notifications"
           i18n-content="manage_exceptions"></button>
     </div>
   </section>
 </div>