JSFiddle - React, Tailwind, and code Playground

HTML

<div class="mydiv"><span class="span">Frameworks and Extensions</span></div>

CSS

.mydiv{
    width:100px;
    height:70px;
    border:1px solid red;
    position:absolute;
    text-align:center;
    background-color:#ccc; 
    display:table-row;
}
.span{
    display:table-cell;
    vertical-align:middle;
    height:inherit;
}