Further simplification of the layout code

webadmin/src/views/activity.html

@@ -1,11 +1,11 @@
 
-<div class="row">
+<div>
   <div class="col-md-10 col-md-offset-1">
       <h1>Activity Log</h1>
   </div>
 </div>
 
-<div class="row">
+<div>
   <div class="col-md-10 col-md-offset-1">
     <div class="filter">
       <input type="text" class="form-control" ng-model="search" ng-model-options="{ debounce: 1000 }" ng-change="updateFilter()" placeholder="Search"/>
@@ -22,7 +22,7 @@
   </div>
 </div>
 
-<div class="row">
+<div>
     <div class="col-md-10 col-md-offset-1">
         <div class="card card-block" style="max-width: 100%">
             <center ng-show="busy"><h2><i class="fa fa-circle-o-notch fa-spin"></i></h2></center>