JSFiddle - React, Tailwind, and code Playground
HTML
<ul class="test-list">
<li>
<input class="test-input" value="sad"/>
</li>
<li>
<input class="test-input" value="dasd"/>
</li>
<li>
<input class="test-input" value="test1"/>
</li>
</ul>
CSS
.Btn{
background:#68c;
}
JavaScript
$('.test-list [value=test1]').css("background-color", "yellow")