JSFiddle - React, Tailwind, and code Playground

HTML

<div class="wrapper">
    <img src="http://www.zwaldtransport.com/images/placeholders/placeholder1.jpg"/>
    <div class="flex-wrapper">
        <h1>My Title</h1>
        <h5>Subtitle</h5>
    </div>
</div>

CSS

html, body {
margin: 0; padding: 0;
width: 100%; height: 100%;
}

.wrapper {
    background: #CCC;
    height: 100%;
    width: 100%;
    margin: 0; padding: 0;
    display: table;
}

img {
    width: 100%;
    height: 100%;
}

.flex-wrapper {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
}