JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <div class="box">
         <h2>Langtidsparkering</h2>

        <div class="content">Lorem ipsum dolor sit amet..</div>
    </div>
    <div class="listcontainer">
        <div class="list"></div>
        <div class="listbar">
            <button class="viewPrices" type="submit" title="Open" style="float:right;margin-top:8px; margin-right:8px;">Se priser<span class="arrow">&nbsp;&nbsp;></span>
            </button>
        </div>
    </div>
</div>
</br>
<div class="container">
    <div class="box">
         <h2>Langtidsparkering</h2>

        <div class="content">Lorem ipsum dolor sit amet..</div>
    </div>
    <div class="listcontainer">
        <div class="list"></div>
        <div class="listbar">
            <button class="viewPrices" type="submit" title="Open" style="float:right;margin-top:8px; margin-right:8px;">Se priser<span class="arrow">&nbsp;&nbsp;></span>
            </button>
        </div>
    </div>
</div>

CSS

body {
    font-family: Arial;
    color: #4c4c4c;
    font-size: 12px;
}
h1, h2, h3 {
    margin: 0;
    margin-bottom: 12px;
}
.container {
    max-width: 794px;
}
.box {
    width: 768px;
    min-height: 160px;
    background-color:#fff;
    border: 1px solid #c4c4c4;
    padding: 12px;
}
.content {
    height: 138px;
    max-height: 138px;
    overflow: hidden;
}
.listaccordion {
}
.listbar {
    position: relative;
    height: 40px;
    background-color: #F0F0F0;
    bottom: 0;
    border-bottom: 1px solid #c4c4c4;
    border-left: 1px solid #c4c4c4;
    border-right: 1px solid #c4c4c4;
}
.list {
    height: 600px;
    background-color: #c4c4c4;
    display: none;
}
.visible {
    display: block !important;
}
.hidden {
    display: none;
}

JavaScript

$(".viewPrices").click(function () {
    $(this).closest('.listcontainer').find('.list').toggleClass('visible');
});