JSFiddle - React, Tailwind, and code Playground

HTML

<input type="button" value="Here" />
<input type="button" value="Here" />
<input type="button" value="Here" />
<input type="button" value="Here" />
<input type="button" value="Here" />
<input type="button" value="Here" />

CSS

input[type="button"]:focus { color:red; }

JavaScript

var allButtons = $(":button"),
    index = 0;
(function focus() {
    allButtons[index].focus();
    index++;
    //
    setTimeout(focus, index*100);
    if (index >= allButtons.length)
        index = 0;
}());