JSFiddle - React, Tailwind, and code Playground

HTML

<footer>
    <p>Linnéuniversitetet, Webbteknik 1</p>
    <p class="created">Created by DK222CU</p>
</footer>

CSS

footer {
    opacity:.1;
    bottom:0;
    position:fixed;
    width:100%;
    background-color:#000;
    color:#FFF;
}
footer p {
    float:left;
    margin-left:8%;
}
.created {
    margin-right:8%;
    float:right;
}
footer:hover {
    opacity:1.0;
}