JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#">Pek her</a>

CSS

body {
    background:#222;
}
a {
    color:#777;
    -webkit-transition:all 0.5s;
       -moz-transition:all 0.5s;
        -ms-transition:all 0.5s;
         -o-transition:all 0.5s;
            transition:all 0.5s;
}
a:hover {
    color:#fff;
}