JSFiddle - React, Tailwind, and code Playground

HTML

<body>
    <div id="container">
        <a href="#">
            1
        </a>
        <a href="#">
            2
        </a>
        <a href="#">
            3
        </a>
        <a href="#">
            4
        </a>
    </div>
</body>

CSS

body {
    border: 1px solid black;
    background-color: #BCCDDC;
    margin: 5% 25%
}

#container a {
    font-family: 'Open Sans', sans-serif;
    text-align: center;
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
    border: 2px solid #fff;
    display: inline-block;
    width: 15%;
    margin: 0 6.66%;
    padding: 20px 0;
}

#container a:first-of-type {
    margin-left: 0 !important;;
}

#container a:last-of-type {
    margin-right: 0 !important;
}