JSFiddle - React, Tailwind, and code Playground

HTML

<div class="supportus-button-container"> <a href="#" id="supportus-button-1" class="supportus-button">MAKE A DONATION</a>
    <br>
    <br>
    <br>
</div>
<div class="supportus-box-1">
From the New World
    <br>
    <br>
</div>

CSS

.supportus-button-container {
    padding-left: 6.5%;
    padding-top: 30px;
}
.supportus-button {
    text-decoration:none;
    text-align:center;
    position: relative;
    width: 100%;
    display: block;
    padding:70px 0px;
    border:none;
    font:1em;
    font-weight:bold;
    color:#ffffff !important;
    background:#e29a25;
    -webkit-transition: all 0.16s linear;
    -moz-transition: all 0.16s linear;
    -o-transition: all 0.16s linear;
    transition: all 0.16s linear;
}
.supportus-button:hover {
    background:#827b72;
}
.supportus-button:active {
    background:#827b72;
}
.supportus-button:not(.clicked):after {
    top: 100%;
    left: 50%;
    border: solid transparent;
    content:"  ";
    height: 0;
    width: 0;
    position: absolute;
    pointer-events: none;
    border-top-color: #827b72;
    border-width: 20px;
    margin-left: -20px;
    -webkit-transition: all 0.16s linear;
    -moz-transition: all 0.16s linear;
    -o-transition: all 0.16s linear;
    transition: all 0.16s linear;
}
.supportus-button:hover:after {
    border-top-color: #827b72;
}
#supportus-button-1.clicked {
    background:#827b72;
}
.supportus-box-1 {
    /*border: solid #e29b25;*/
    background-color: rgbA(59, 59, 59, 0.5);
    width: 100%;
    height: 190px;
    display: none;
    color: white;
}

JavaScript

$("#supportus-button-1").click(function () {
    $(this).toggleClass("clicked");
    $(".supportus-box-1").toggle();
});