JSFiddle - React, Tailwind, and code Playground

HTML

<div id="meny">
    <a href="start.html">Startsida</a>
    <a href="kontakt.html">Kontakta oss</a>
    <a href="om.html">Om oss</a>
</div>

CSS

#meny {
    width: 800px;
    background: #CCC;
    text-align: center;
    padding: 10px;
}
#meny a {
    margin-right: 20px;
}
#meny a:last-of-type{
    margin-right: 0;
}