<div class="drawer-contents">
<div class="drawer-heading">
<h2 class="drawer-title"><strong>Application settings</strong></h2>
</div>
<div class="drawer-heading">
<h3 class="drawer-title">background</h3>
</div>
<div class="drawer-body">
<a class="col-sm-4" style="background: rgb(185, 140, 51) none repeat scroll 0% 0%; width: 33%; height: 70px;display: inline-block;cursor: pointer;">
</a>
<a class="col-sm-4"style="background: rgb(177, 60, 75) none repeat scroll 0% 0%; width: 33%; height: 70px; display: inline-block;cursor: pointer;"> </a>
<a class="col-sm-4" ng-click="select_background('rgb(43, 115, 177)')" style="background: rgb(43, 115, 177) none repeat scroll 0% 0%; width: 33%; height: 70px; display: inline-block;cursor: pointer;"> </a>
<a class="col-sm-4" ng-click="select_background('rgb(11, 135, 140)')" style="background: rgb(11, 135, 140) none repeat scroll 0% 0%; width: 33%; height: 70px;display: inline-block;cursor: pointer;"> </a>
<a class="col-sm-4" ng-click="select_background('rgb(177, 60, 60)')" style="background: rgb(177, 60, 60) none repeat scroll 0% 0%; width: 33%; height: 70px;display: inline-block;cursor: pointer;"> </a>
<a class="col-sm-4" ng-click="select_background('rgb(29, 155, 88)')" style="background: rgb(29, 155, 88) ;width: 33%; height: 70px;display: inline-block;cursor: pointer;"> </a>
<a class="col-sm-4" ng-click="select_background('rgb(16, 117, 113)')" style="background: rgb(16, 117, 113) none repeat scroll 0% 0%; width: 33%; height: 70px;display: inline-block;cursor: pointer;">
</a>
<a class="col-sm-4" ng-click="select_background('rgb(107, 28, 38)')" style="background: rgb(107, 28, 38) none repeat scroll 0% 0%; width: 33%; height: 70px; display: inline-block;cursor: pointer;"> </a>
<a class="col-sm-4" ng-click="select_background('rgb(43, 177, 101)')" style="background: rgb(43, 177, 101) none repeat scroll 0% 0%; width: 33%; height: 70px; display: inline-block;cursor: pointer;"> </a>
<a class="col-sm-4" ng-click="select_background('rgb(34, 140, 121)')" style="background: rgb(34, 140, 121) none repeat scroll 0% 0%; width: 33%; height: 70px;display: inline-block;cursor: pointer;"> </a>
<a class="col-sm-4" ng-click="select_background('rgb(153, 56, 56)')" style="background: rgb(153, 56, 56) none repeat scroll 0% 0%; width: 33%; height: 70px;display: inline-block;cursor: pointer;"> </a>
<a class="col-sm-4" ng-click="select_background('rgb(97, 171, 59) ')" style="background: rgb(97, 171, 59) ;width: 33%; height: 70px;display: inline-block;cursor: pointer;"> </a>
<a class="col-sm-4" ng-click="remove_background_color()" style="display: inline-block;cursor: pointer;"> حذف رنگ پس زمینه</a>
</div>
<div class="drawer-heading">
<h3 class="drawer-title">بک گراند</h3>
</div>
<div>
<a class="col-sm-4" ng-click="select_background('rgb(185, 140, 51)')" style="background: rgb(185, 140, 51) none repeat scroll 0% 0%; width: 33%; height: 70px;display: inline-block;cursor: pointer;">
</a>
<a class="col-sm-4" style="background: rgb(177, 60, 75) none repeat scroll 0% 0%; width: 33%; height: 70px; display: inline-block;cursor: pointer;"> </a>
<a class="col-sm-4" ng-click="select_background('rgb(43, 115, 177)')" style="background: rgb(43, 115, 177) none repeat scroll 0% 0%; width: 33%; height: 70px; display: inline-block;cursor: pointer;"> </a>
<a class="col-sm-4" ng-click="select_background('rgb(11, 135, 140)')" style="background: rgb(11, 135, 140) none repeat scroll 0% 0%; width: 33%; height: 70px;display: inline-block;cursor: pointer;"> </a>
<a class="col-sm-4" ng-click="select_background('rgb(177, 60, 60)')" style="background: rgb(177, 60, 60) none repeat scroll 0% 0%; width: 33%; height: 70px;display: inline-block;cursor: pointer;"> </a>
<a class="col-sm-4" ng-click="select_background('rgb(29, 155, 88)')" style="background: rgb(29, 155, 88) ;width: 33%; height: 70px;display: inline-block;cursor: pointer;">hh </a>
<a class="col-sm-4" ng-click="select_background('rgb(16, 117, 113)')" style="background: rgb(16, 117, 113) none repeat scroll 0% 0%; width: 33%; height: 70px;display: inline-block;cursor: pointer;">
</a>
<a class="col-sm-4" ng-click="select_background('rgb(107, 28, 38)')" style="background: rgb(107, 28, 38) none repeat scroll 0% 0%; width: 33%; height: 70px; display: inline-block;cursor: pointer;"> </a>
<a class="col-sm-4" ng-click="select_background('rgb(43, 177, 101)')" style="background: rgb(43, 177, 101) none repeat scroll 0% 0%; width: 33%; height: 70px; display: inline-block;cursor: pointer;"> </a>
<a class="col-sm-4" ng-click="select_background('rgb(34, 140, 121)')" style="background: rgb(34, 140, 121) none repeat scroll 0% 0%; width: 33%; height: 70px;display: inline-block;cursor: pointer;"> </a>
<a class="col-sm-4" ng-click="select_background('rgb(153, 56, 56)')" style="background: rgb(153, 56, 56) none repeat scroll 0% 0%; width: 33%; height: 70px;display: inline-block;cursor: pointer;"> </a>
<a class="col-sm-4" ng-click="select_background('rgb(97, 171, 59) ')" style="background: rgb(97, 171, 59) ;width: 33%; height: 70px;display: inline-block;cursor: pointer;"> </a>
<a class="col-sm-4" ng-click="remove_background_color()" style="display: inline-block;cursor: pointer;"> حذف رنگ پس زمینه</a>
</div>
</div>
<div class="drawer-controls" style="height: auto !important; bottom: 80px;">
<a id="doDrawer" aria-expanded="true" href="#docDrawer" data-toggle="drawer" aria-foldedopen="false" aria-controls="docDrawer" class="btn btn-default"><span class="glyphicon glyphicon-cog"></span></a>
</div>
</div>`
sections with 'drawer-heading' class cover top sections and make disable them.
.drawer-heading{
display: inline-block;
}