Discount Pop Up Appeared Below Page

Hi Support,

I tried test discount without auto checkout upon reached the amount goal and the pop up appeared below the website. Happen to mobile as well.

If enable auto check out the same thing happen on both platform. Luckily it did auto redirect to checkout page with proper discount. The only thing is the pop up appeared below bottom of the website.

If there is CSS code to fix this will much appreciated.

Unfortunately, can’t attach the screenshot here.

Thanks.