JSFiddle - React, Tailwind, and code Playground

by jessekinsman

HTML

<div class="wrapper">
<div class="reveal"></div>
</div>

CSS

.reveal {
    width: 400px;
    height: 400px;
    background: black;
    opacity: 0;
    transition: opacity 4s linear;
    -webkit-transition: opacity 4s linear;
}
.wrapper:hover .reveal {
    opacity: .5;
}
.wrapper {
    width: 500px;
    height: 500px;
    background: red;
}
}