[ureech]

<li><a class="tab" href="#tab-mus">Музыка</a></li>
		 <li><a class="tab"  href="#tab-bis">Бизнесс</a></li>
		 <li><a class="tab" href="#tab-pol">Политика</a></li>		 
		 <li><a class="tab" href="#tab-mov">Кино</a></li>

<div id="tab-mus" >
<div class="tab-in_1 animated" ></div>
</div>
<div id="tab-pol" >
<div class="tab-in_1 animated" ></div>
</div>
<div id="tab-mov" >
<div class="tab-in_1 animated" ></div>
</div>
<div id="tab-bis" >
<div class="tab-in_1 animated" ></div>
</div>

$('.tab').on('click', function() {
    $('.tab-in_1').toggleClass('zoomIn');
});