JSFiddle - React, Tailwind, and code Playground

HTML

<div class="car-search-wrapper">    
    <div class="car-search">
        <!--other divs removed for example-->
        <div class="border-bottom"></div>
    </div>
    <div class="car-search">
        <!--other divs removed for example-->
        <div class="border-bottom"></div>
    </div>
</div>
<div>Another DIV</div>

CSS

.car-search .border-bottom{
        border-bottom: 1px solid #ccc;
        padding-top: 15px;
        margin-bottom: 15px;
        margin-left: 15px;    
}

.car-search:last-of-type .border-bottom{
    display: none;
}