Cell borders visible on Mac browsers

Cell borders Firefox Mac

[thisonly]

I've created a site with tables. I've set the tables to have white, invisible borders but someone who uses a Mac and firefox sees them as grey. Anyone know why, and more importantly, how to stop it?

Thanks

[encyclo]

Welcome to WebmasterWorld thisonly! It depends on how you are defining the border colors. If you are using the

bordercolor

attribute on your tables, then this is non-standard HTML and is not supported in Firefox.

If you don't need borders, best to just set them to zero rather than setting them as the background color: add

border="0"

to your

table

element or set the border in CSS.

Don't forget that it's a good idea to check out your markup with the HTML validator [validator.w3.org] to see where any errors lie.