WebUI Prefs: Don't use display:block for labels

chrome/browser/resources/options/chromeos_internet_detail.html

 <div class="page hidden" id="detailsInternetPage">
   <h1 id="inetTitle"></h1>
   <!-- Navigation tabs -->
   <div class="subpages-nav-tabs" id="details-tab-strip">
     <span id="wifiNetworkNavTab" class="tab wifi-details"
         tab-contents="wifiNetworkTab">
       <span class="tab-label"
           i18n-content="wifiNetworkTabLabel"></span>
       <span class="active-tab-label" i18n-content="wifiNetworkTabLabel"></span>
     </span>
@@ skipping 23 matching lines @@
   </div>
   <div id="wifiNetworkTab" class="subpages-tab-contents wifi-details">
     <section>
       <table class="option-control-table">
         <tr>
           <td class="option-name" i18n-content="inetSsid"></td>
           <td id="inetSsid" class="option-value"></td>
         </tr>
         <tr>
           <td colspan="2">
-            <label class="checkbox">
-              <input id="autoConnectNetwork" type="checkbox">
-              <span i18n-content="inetAutoConnectNetwork"></span>
-            </label>
+            <div class="checkbox">
+              <label>
+                <input id="autoConnectNetwork" type="checkbox">
+                <span i18n-content="inetAutoConnectNetwork"></span>
+              </label>
+            </div>
           </td>
         </tr>
       </table>
     </section>
     <section class="cert-details">
       <table class="option-control-table">
         <tr>
           <td class="option-name" i18n-content="inetIdent"></td>
           <td class="option-value"><input id="inetIdent"></td>
         </tr>
@@ skipping 35 matching lines @@
             <td i18n-content="planLoading" class="option-value"></td>
           </tr>
           <tr class="no-plan-info">
             <td i18n-content="noPlansFound" class="option-value"></td>
           </tr>
         </table>
       </div>
       <div id="planList"></div>
     </section>
     <section class="plan-details-info">
-      <div>
-        <label class="checkbox">
+      <div class="checkbox">
+        <label>
           <input id="showPlanNotifications" type="checkbox"
                  pref="settings.internet.mobile.show_plan_notifications">
           <span i18n-content="showPlanNotifications"></span>
         </label>
       </div>
     </section>
   </div>
   <div id="cellularConnTab" class="subpages-tab-contents cellular-details">
     <section id="cellularNetworkOptions">
       <table class="option-control-table">
@@ skipping 120 matching lines @@
     <button id="detailsInternetDismiss"
             i18n-content="detailsInternetDismiss"></button>
     <button id="detailsInternetLogin"
             i18n-content="connect_button"></button>
     <button id="activateDetails"
             i18n-content="activate_button"></button>
     <button id="buyplanDetails"
             i18n-content="buyplan_button"></button>
   </div>
 </div>