Percentage
The simplest (and recommended) approach is to use Tailwind percentage widths:w-2/3 or w-4/6.
Fixed
Of course, you can use fixed widths if you prefer.Stacking
Responsive HTML emails usually reset the columns to stack on mobile. We can easily achieve this with a couple utility classes. Using the percentage example, we might do:doctype of your email, which prevents inline-block from working on <td>. This can be fixed by using <th> instead, but requires resetting the font weight and text alignment: