How to style all links of a div with subelements? :     <div class="container-1">
    	<div class="container-2">
    		<a href="#">Link 1</a>
    	
    		<div class="container-3">
    			<a href="#">Link 2</a>
    		</div
    	</div>
    	
    	<div class="container-4">
    		<a href="#">Link 3</a>
    	</div>
    </div>
    
    <div class="container-5">
    	<div class="container-6">
    		<a href="#">Link 4</a>
    	
    		<div class="container-7">
    			<a href="#">Link 5</a>
    		</div
    	</div>
    	
    	<div class="container-8">
    		<a href="#">Link 6</a>
    	</div>
    </div>

I want every link in **container-1** to have the attribute **"text-decoration: underline;"**. What is the best way to achieve this without also changing **container-5** links?