JSFiddle - React, Tailwind, and code Playground

HTML

<input type="checkbox" id="check" checked>&nbsp;<span id="rm">Remember me</span>

<span id="ok">Okay!</span>

CSS

input[type="checkbox"] {
    vertical-align:-10%;
}
#rm {
    font:14px century;
}
#ok {
    position:absolute;
    font:italic bold 14px century;
    color:green;
    margin-left:3px;
    margin-top:2px;
    display:inline-block;
    opacity:0;
}

JavaScript

if ($('#check').is(":checked")) {
    $("#ok").css("opacity", 1);
   // console.log("works");
}