fixed sidebar hidden border

app/index.html

     <div layout="column" class="layout-column flex">
         <ng-include src="'views/toolbar.html'"></ng-include>
 
-        <md-content flex layout-padding >
+        <md-content flex layout-padding class="md-main-content" >
             <div ui-view layout="column" layout-fill layout-align="top center"></div>
             <div flex></div>
         </md-content>

app/less/app.less

   min-height: 150px;
 }
 
+.md-main-content {
+  margin-left: 5px;
+}
+
 .welcome-message {
   font-size: large;
 }