JSFiddle - React, Tailwind, and code Playground

HTML

<div class="imageContainer">
    <div class="overlay">
        <div class="overlayText">blahblahblah
            <br/>some Text</div>
    </div>
    <img src="http://lorempixel.com/400/400/">
</div>

SCSS

/* centering stuff */
.imageContainer{
    position: relative;
    display: inline-block;
}
.overlayText{
    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    top: 50%;
    left: 50%;
    position: relative;
    text-align: center;
}
.overlay{
    position: absolute;
    width: 100%;
    height: 100%;
}

/* styling stuff */
.overlayText{
    width: 80%;
    background-color: rgba(0,0,0,0.4);
    padding: 10px;
    font-size: 20px;
}
.imageContainer{
    font-size: 0;
}
.overlay{
    display:none;
    color: white;
    background-color: rgba(0,0,0,0.4);
}
.imageContainer:hover #overlay{
    display: inline-block;
}
img{
    width: 150px;
}