sIFR可以工作但是在渲染了一点之后它会推送我的内容

i want to use the siFR on my website but i have one question. I have implemented sIFR and it seems to work, but when it load and renders the new headline it "pushs" my content to the bottom. i think 10px or so.i want to use the siFR on my website but i have