Michael,
Unfortunately, you can't use a percentage value in the width column. Facebook (not JFBConnect) won't allow it in the parameters.
However, what you can try that should work is add the following to your CSS file for your mobile site (or possible the general template for both):
.jfbcfan iframe, .jfbcfan span {
width: 50% !important;
}You can also try setting the value in px as well for just the mobile site. Whatever works best for your needs.
Let us know how that goes. We'd love to have your feedback as we may include a 'real' width option in the future to try to allow more control for mobile environments as that's obviously pretty important nowadays.
Thanks,
Alex
JFBCFan
