Position fixed not working is working like absolute
<p>my question is pretty simple. I'm working on a page on mobile version, and we want to keep the "snag it" yellow button fixed on bottom, but position fixed is not working, it's working like position absolute and i don't know why.</p>

<p>The page i'm working: <a href="https://www.thechivery.com/products/everything-is-j-ok-tee">https://www.thechivery.com/products/everything-is-j-ok-tee</a></p>

<p>Thanks,
Luiz</p>