[jhowell]

What you are doing seems like a wrong approach. Specifying an image width or height in percent says to make it a percentage of the enclosing block, the table cell in this case. The image will end up being sized based on the other content in the table, not based on the image itself.

You should instead do something like set the table cells to each be a certain percentage of the screen width and then have the image take up 100% of the enclosing cell width.