JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <p class="vertical-center">here is center</p>
</div>

CSS

.container {
    margin: 50px;
    background: red;
    height: 200px;
    position: relative;
}
.vertical-center {
    position: absolute;
    top: 0;
    bottom: 0;
    margin: auto;
    height: 50px;
    background: yellow;
}