JSFiddle - React, Tailwind, and code Playground

HTML

<div class="grayscale">
    <img class="bird" src="http://jpowell43.mydevryportfolio.com/flatDesign/images/birds.svg" alt="birds" />
    <p class="title"><strong>The wild Swallow bird</strong><br />This crazy and unique bird loves to fly over the sky in search of a tasty div tag</p>
</div>

CSS

.grayscale {
    width: 200px;
    height: 200px;
    position: relative;
    margin: 0 auto;
    top: 30px;
    border: 3px solid rgba(0, 0, 0, 0.6);
    padding: 10px;
    background: rgba(255, 255, 255, 0.5);
}

.bird {
     width: 100%;
    height: 100%;
    filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'1 0 0 0 0, 0 1 0 0 0, 0 0 1 0 0, 0 0 0 1 0\'/></filter></svg>#grayscale");
     -webkit-filter: grayscale(100%);
}

.bird.active {
    -webkit-filter: grayscale(100%) !important;
}

.bird:hover {
    -webkit-filter: grayscale(0%);
}

.grayscale p {
    position: absolute;
    bottom: 0;
    left: 0;
    display: none;
}

.grayscale:hover p {
    display: inline;
}

.grayscale p:hover strong { /* Can be h1, h2, span, etc... */
    color: brown;
}

.title.active {
    -webkit-filter: grayscale(0%) !important;
}