JSFiddle - React, Tailwind, and code Playground

HTML

<div class="mydiv">
    <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;
}
.mydiv>span {
    display: table-cell;
    vertical-align: middle; 
}