R – sIFR 3 r436: how to get really big fonts

The forceSingleLine parameter for sIFR.replace() is the easiest way to resolve this. The problem usually arises when the Flash text is wider than the HTML text, and the elements being replaced are exactly the width of the HTML text. In this case the sIFR text won't fit in the allowed space without wrapping.

Another solution is to use letter-spacing through .sIFR-active .myNavItemToBeReplaced CSS rules, to make the HTML text wider so the Flash text does fit without wrapping.

I suspect that Flash renders a fake underline, and no, you can't change how it looks. The only option would be to render a border underneath the Flash movie using HTML & CSS, but I don't that'll work very well.

With sIFR 3, if you specify the fitExactly: true option in the replacement, the Flash movie will be the same width as the internal text.