~이상 ~이하 선택자

<style>
.__gtlt {font-size:0;}
.__gtlt .box {width:50px;padding:15px 0;text-align:center;font-size:15px;display:inline-block;border:1px solid #ddd;margin-left:-1px;position:relative;}
.__gtlt .box:first-child {margin-left:0;}
.__gtlt .box.active {background:#333;border-color:#333;color:#fff;}
</style>

<div class="__gtlt">
	<div class="box">1</div>
	<div class="box">2</div>
	<div class="box">3</div>
	<div class="box">4</div>
	<div class="box">5</div>
	<div class="box">6</div>
	<div class="box">7</div>
	<div class="box">8</div>
	<div class="box">9</div>
	<div class="box">10</div>
	<div class="box">11</div>
</div>

<script>
$('.__gtlt .box:gt(0)').filter(':lt(3)').addClass('active');
</script>