JSFiddle - React, Tailwind, and code Playground

HTML

<div class="numberCircle">30</div>
<div class="numberCircle">1</div>
<div class="numberCircle">2</div>

CSS

.numberCircle {
    border-radius: 50%;
    behavior: url(PIE.htc); /* remove if you don't care about IE8 */

    width: 1.1em;
    height: 1.1em;
    padding: 0.25em;
    
    background: #fff;
    border: 0.1em solid #666;
    color: #666;
    text-align: center;
    
    font: 32px Arial, sans-serif;
}