JSFiddle - React, Tailwind, and code Playground

HTML

<body ng-app>
    <table border="1">
        <tr>
            <th>x</th>
            <th ng-repeat="h in [1, 2, 3, 4, 5, 6, 7, 8, 9]">{{h}}</th>
        </tr>
        <tr ng-repeat="i in [1, 2, 3, 4, 5, 6, 7, 8, 9]">
            <td><strong>{{i}}</strong></td>
            <td ng-repeat="j in [1, 2, 3, 4, 5, 6, 7, 8, 9]">{{i*j}}</td>
        </tr>
    </table>
</body>

CSS

td, th {
    border: 1px solid black;
    width: 2rem;
    text-align: center;
}

table {
    border-collapse: collapse;
}