JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <img src="http://hhhhold.com/m/b" alt="Random image with random size">

    <div class="centered-wrap">
        <div class="centered">
            <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Alias assumenda atque consectetur cupiditate doloribus exercitationem iure suscipit voluptas! Accusamus aliquid atque fugit ipsam nam placeat quas quis quo tenetur veritatis?</p>
        </div>
    </div>
</div>

CSS

.container {
    position: relative;
}

/* centered element */
.centered-wrap {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    text-align: center;
}
.centered-wrap:before {
    content: '';
    display: inline-block;
    height: 100%;
    vertical-align: middle;
    margin-right: -0.25em;
}

.centered {
    display: inline-block;
    vertical-align: middle;
    text-align: left;

    /* optionally max size */
    max-width: 200px;
}


/* decorative styles */
body {
    background-color: pink;
}

.container {
    display: inline-block;
    border: 1px solid black;
}

.centered {
    border: 1px solid black;
    background-color: #9CE8FD;
}