JSFiddle - React, Tailwind, and code Playground

HTML

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

CSS

*, *:before, *:after {
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

html, body{
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    position: relative;
    padding: 20px;
}
.container{
    position: relative;
    width: 100%;
    height: 100%;
    background-color: lightgray;
}
.box-container{
    position: relative;
    float: left;
    min-width: 120px;
    width: 20%;
    background-color: blue;
}

.box{
    background-color: red;
    width: 100px;
    height: 100px;
    margin: 10px auto;
}