VerticalRhythm
If you feel concerned about honoring the vertical rhythm of your page when using sIFR for your headings, you need to fine tune the leading (see Styling), offsetTop and tuneHeight (see JavaScript Methods) values to get the sIFR text's height take a multiple of the line-height value you chose up-front.
Once done, you will notice that padding remains below the Flash movie object: this padding is here to leave room to the descenders. However the descenders are already inside the Flash object and the padding breaks the rhythm of the page.
You can effectively remove it by applying this CSS rule:
.sIFR-active object {
display: block;
}
