JSFiddle - React, Tailwind, and code Playground

HTML

<div id="container">
    <div class="box"></div><div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
</div>

CSS

body {
    text-align: center;
}
#container {
    text-align: left;
    border: 1px solid red;
    display: table;
    padding:0;
    margin:0;
    width:100%;
}
.box {
    display:table-cell;
    height:100px;
    border:1px solid blue;
}