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HTML 

              
                <div class="container">
    <div class="row">
        <div class="col-sm-3 col-md-3">
            <div class="panel-group accordion-menu glyphicon-icon-rpad" id="accordion">
                <div class="panel panel-default">
                    <div class="panel-heading">
                        <h4 class="panel-title">
                            <a data-toggle="collapse" data-parent="#accordion" href="#collapseOne"><span class="glyphicon glyphicon-folder-close m5"></span> Content
                            <span class="accordion-menu-collapsible-icon glyphicon glyphicon-chevron-down"></span>
                          </a>
                        </h4>
                    </div>
                    <div id="collapseOne" class="panel-collapse collapse in">
                        <div class="panel-body">
                            <ul class="">
                                <li><a href="#"><span class="glyphicon glyphicon-pencil"></span>Articles</a></li>
                                <li><a href="#"><span class="glyphicon glyphicon-flash"></span>News</a></li>
                                <li><a href="#"><span class="glyphicon glyphicon-file"></span>Newsletters</a></li>
                                <li><a href="#"><span class="glyphicon glyphicon-comment"></span>Comments <span class="badge">42</span></a></li>
                            </ul>
                        </div>
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-heading">
                        <h4 class="panel-title glyphicon-icon-rpad">
                            <a data-toggle="collapse" data-parent="#accordion" href="#collapseTwo"><span class="glyphicon glyphicon-th  m5"></span>Modules</a>
                            <span class="accordion-menu-collapsible-icon glyphicon glyphicon-chevron-down"></span>
                        </h4>
                    </div>
                    <div id="collapseTwo" class="panel-collapse collapse">
                        <div class="panel-body">
                            <ul class="kas-icon-aero">
                                <li><a href="#">Orders <span class="pull-right label label-success">$ 320</span></a></li>
                                <li><a href="#">Invoices</a></li>
                                <li><a href="#">Shipments</a></li>
                                <li><a href="#">Tex</a>
                                </li>
                            </ul>
                        </div>
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-heading">
                        <h4 class="panel-title glyphicon-icon-rpad">
                            <a data-toggle="collapse" data-parent="#accordion" href="#collapseThree"><span class="glyphicon glyphicon-user m5"></span>Account</a>
                            <span class="accordion-menu-collapsible-icon glyphicon glyphicon-chevron-down"></span>
                        </h4>
                    </div>
                    <div id="collapseThree" class="panel-collapse collapse">
                        <div class="panel-body">
                            <ul class="bullets">
                                <li><a href="#">Change Password</a></li>
                                <li><a href="#">Notifications <span class="label label-info">5</span></a></li>
                                <li><a href="#">Import/Export</a></li>
                                <li><a href="#">Delete Account</a></li>
                            </ul>
                        </div>
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-heading">
                        <h4 class="panel-title glyphicon-icon-rpad">
                            <a data-toggle="collapse" data-parent="#accordion" href="#collapseFour"><span class="glyphicon glyphicon-file m5"></span>Reports</a>
                            <span class="accordion-menu-collapsible-icon glyphicon glyphicon-chevron-down"></span>
                        </h4>
                    </div>
                    <div id="collapseFour" class="panel-collapse collapse">
                        <div class="panel-body">
                            <ul class="numerics">
                                <li><a href="#">Sales</a></li>
                                <li><a href="#">Customers</a></li>
                                <li><a href="#">Products</a></li>
                                <li><a href="#">Shopping Cart</a></li>
                            </ul>
                        </div>
                    </div>
                </div>
            </div>
        </div>
        <div class="col-sm-9 col-md-9">
            <div class="well">
                <h1>
                    Accordion Menu With Icon</h1>
                Admin Dashboard Accordion Menu
            </div>
        </div>
    </div>
</div>
!

CSS 

              
                body{margin-top:50px;}
.accordion-menu .panel-body{padding:0px; margin:0px;}
.accordion-menu .panel-heading{background-color:#FFFFFF;}
.accordion-menu .panel-heading:hover{
  background:#f5f5f5;
}

.accordion-menu .panel{
	-webkit-border-radius: 3px;
	-moz-border-radius: 3px;
	border-radius: 3px;
  box-shadow: 0 0px 0px rgba(0, 0, 0, 0.05);}

.glyphicon-icon-rpad .glyphicon,.glyphicon-icon-rpad .glyphicon.m8,.fa-icon-rpad .fa,.fa-icon-rpad .fa.m8{ padding-right:8px; }
.glyphicon-icon-lpad .glyphicon,.glyphicon-icon-lpad .glyphicon.m8,.fa-icon-lpad .fa,.fa-icon-lpad .fa.m8{ padding-left:8px; }
.glyphicon-icon-rpad .glyphicon.m5,.fa-icon-rpad .fa.m5{ padding-right:5px; }
.glyphicon-icon-lpad .glyphicon.m5,.fa-icon-lpad .fa.m5{ padding-left:5px; }
.glyphicon-icon-rpad .glyphicon.m12,.fa-icon-rpad .fa.m12{ padding-right:12px; }
.glyphicon-icon-lpad .glyphicon.m12,.fa-icon-lpad .fa.m12{ padding-left:12px; }
.glyphicon-icon-rpad .glyphicon.m15,.fa-icon-rpad .fa.m15{ padding-right:15px; }
.glyphicon-icon-lpad .glyphicon.m15,.fa-icon-lpad .fa.m15{ padding-left:15px; }

.accordion-menu h4{position:relative;}

.accordion-menu h4 .accordion-menu-collapsible-icon{position:absolute; right:0px; top:5px; font-size:9px; }
.accordion-menu h4 a{display:block; color:#666666;}
.accordion-menu h4 a.active,.accordion-menu h4 .active, .active{text-decoration:none;}
.accordion-menu h4 a:hover,
.accordion-menu h4 a:focus{text-decoration:none; color:#222222;}
.accordion-menu h4 .accordion-menu-title-icon
{
  float:right;
  margin:0;
}
.accordion-menu ul{list-style:none; padding:0px; margin:0px;}
.accordion-menu ul li .badge,.accordion-menu ul li span.badge,.accordion-menu ul li label.badge{float:right}
.accordion-menu ul li:first-child a{}
.accordion-menu ul li:last-child a{border:0px solid #f9f9f9;}
.accordion-menu ul li a{display:block; line-height:22px; padding:5px 15px; margin:0px; border-bottom:1px solid #e8e8e8;}
.accordion-menu ul li a:hover{color:#232323;text-decoration:none;}
.accordion-menu ul.bullets{list-style:inside disc}
.accordion-menu ul.numerics{list-style:inside decimal}
.accordion-menu ul.kas-icon{}
.accordion-menu ul.kas-icon-aero li a:before{font-family: 'Glyphicons Halflings'; font-size:9px; content: "\e258"; padding-right:8px; }
!

JS
!
999px

Console