JSFiddle - React, Tailwind, and code Playground

HTML

<div id="page">
    <div id="board">
        <div class="cell"></div>
    </div>
</div>

CSS

#page{

width:980px;
margin: 50px auto;
}

#board{
width:600px;
height:400px;
background-color: gray;
overflow:hidden;
}

.cell{
border: 1px solid;
width:50px;
height:20px;
margin: 30px 5px;
}