JSFiddle - React, Tailwind, and code Playground

by SpAm

HTML

<div class="container">
    <div class="buttons">
        <div></div>
        <div></div>
        <div></div>
        <div></div>
    </div>
    <div class="table-container">
        <table>
            <thead>
                <tr>
                    <td>1</td>
                    <td>2</td>
                    <td>3</td>
                    <td>4</td>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td>a</td>
                    <td>b</td>
                    <td>c</td>
                    <td>d</td>
                </tr>
                <tr>
                    <td>aa</td>
                    <td>bb</td>
                    <td>cc</td>
                    <td>dd</td>
                </tr>
                <tr>
                    <td>aaa</td>
                    <td>bbb</td>
                    <td>ccc</td>
                    <td>ddd</td>
                </tr>
            </tbody>
        </table>
    </div>
</div>

CSS

html, body, .container, .table-container, table
{
    height: 100%;
}

.container
{
    display: block;
    width: 500px;
    margin: 0 auto;
    text-align: center;
}

.table-container
{
    width: 100%;
    border: 1px solid red;
    padding-top: 30px;
    margin-top: -30px;
}

.table-container table
{
    border-spacing:0;
  border-collapse:collapse;
}


.buttons
{
    height: 30px;
}

.buttons div
{
    box-sizing: border-box;
    -moz-box-sizing: border-box;
    width: 25%;
    float: left;
    height: 30px;
    border: 1px solid black;
}

table
{
    border: 1px solid black;
    width: 100%;
}

thead td, tbody td
{
    width: 25%;
    height: 25%;
}