JSFiddle - React, Tailwind, and code Playground

HTML

<table id="collapsed">
    <tr>        
        <td>Egy</td>
        <td>Kettő</td>
    </tr>
    <tr>        
        <td>Három</td>
        <td>Négy</td>
    </tr>    
</table>

<table>
    <tr>        
        <td>Egy</td>
        <td>Kettő</td>
    </tr>
    <tr>        
        <td>Három</td>
        <td>Négy</td>
    </tr>    
</table>

CSS

td{
    border:1px solid black;  
    border-radius:15px;
    background-color:pink;
}

#collapsed{    
    border-collapse: collapse;
}