JSFiddle - React, Tailwind, and code Playground

by bnson

HTML

<div id="mydiv">
    http://bnson.blogspot.com/<br>
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</div>
http://bnson.blogspot.com/<br>
http://bnson.blogspot.com/<br>
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http://bnson.blogspot.com/<br>

CSS

#mydiv {
    top: 50%;
    left: 50%;
    width:26em;
    height:10em;
    margin-top: -5em; /*set to a negative number 1/2 of your height*/
    margin-left: -13em; /*set to a negative number 1/2 of your width*/
    border: 1px solid #ccc;
    background-color: #f3f3f3;
    position:fixed;
    text-align:center;
}