This is driving me crazy. I need spacing between the rows of my mtable elements. For now, I am content to get it in the html; once I have that working, I'll try to move it to CSS.
Here are some things I am trying. In each case, I've set the amount of space crazy large so that if it works it will be unmistakable. But so far I can't see any space.
The implementation of mathML is incomplete. But until now, I've been able to find work-arounds for almost everything.
<math>
<mtable rowspacing="10ex">
<mtr padding="40px">
<mtd padding="40px">
<!-- remainder of the table here -->
another attempt, equally useless:
<math>
<mtable framespacing="40px 40px">
<mtr margin="40px">
<mtd margin="40px">
<!-- remainder of the table here -->
This did it:
<mtd style="padding:10px 0 10px 0">