JSFiddle - React, Tailwind, and code Playground

by Oliver_kh

HTML

<div id="alarm" class="lockedScreenOFF">&nbsp;</div>
<ul id="r_list">
    <li>
        <div id="r_Green_c">
            <p>Do you...?</p>
        </div>
    </li>
    <li>
        <div id="r_Yellow_c">
            <p>For you... ?</p>
        </div>
    </li>
    <li id="r_Red_c"><a><div><p>Found it... ?</p></div></a>

    </li>
</ul>

CSS

.lockedScreenOFF {
    display: none;
}
.lockedScreenON {
    display:block;
    top: 0;
    left: 0;
    width: 50px!important;
    min-width: 100px;
    height: 100px!important;
    background: #424242;
    z-index: 997;
}
#r_list li {
    background: red;
}
#r_Red_c {
    cursor: pointer;
}

JavaScript

$("#r_Red_c").click(function () {
      $('.lockedScreenOFF').addClass("lockedScreenON");
  });

  $("#alarm").click(function () {
      $('.lockedScreenOFF').removeClass("lockedScreenON");
  });