JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li class="active"></li>
    <li></li>
    <li></li>
</ul>

CSS

ul {
    margin: 0;
    padding: 0;
    
    list-style: none;
    
    text-align: center;
    font-size: 0;
}

ul li {
    display: inline-block;
    
    width: 19px;
    height: 19px;
    
    position: relative;
    margin-left: 10px;
    
    border-radius: 50%;
    border: 2px solid #000;
}

ul li:first-child {
    margin-left: 0;
}

ul li.active:before,
ul li.active:after {
    content: '';
    
    width: 9px;
    height: 9px;
    
    position: absolute;
    top: 0;       left: 0;
    bottom: 0;    right: 0;
    
    margin: auto;
    
    border-radius: 50%;
    border: 2px solid #000;
}

ul li.active:after {
    width: 3px;
    height: 3px;
    
    border: none;
    background: #000;
}