JSFiddle - React, Tailwind, and code Playground

HTML

<div id="watermark">Watermark here</div>
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</p>

CSS

body{
    background:#888;
}
p{
    color:white;
}
#watermark
{
 position:fixed;
 top:0;
 left:0;
 opacity:0.5;
 font-size:2em;
 z-index:-1;
 color:#000;
}