I'm having this markup:

```
<style>
    table
    {
        border:1px solid black;
        width:400px;
        height:300px;
        border-collapse:collapse;
    }
    table tbody
    {
        border:1px solid red;
    }
    table td
    {
        background:yellow;
        padding:10px;
        border-bottom:1px solid green;
        height:20px;
    }
</style>

<table>
<tbody>
    <tr><td>test</td></tr>
    <tr><td>test</td></tr>
</tbody>
</table>

```

What I need is that the rows won't stretch in height.
Is there a way to have a fixed row height?