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")