JSFiddle - React, Tailwind, and code Playground

HTML

<div id="container">
     <h3>Title</h3>
    <div class="box">
        <div class="title">Description</div>
        <div class="description">Description 1</div>
    </div>
    <div class="box">
        <div class="title">Description</div>
        <div class="description">Description 2</div>
    </div>
    <div class="box">
        <div class="title">Description</div>
        <div class="description">Description 2</div>
    </div>
    Testing here
</div>

CSS

#container .box:not(:last-child) .description{
    padding-bottom:10px;
}