Having issues with buttons showing on IOS website

I have set up the basic foundations for my website, the creation was done with the computer pixel length. This works well, and shows the buttons I added, yet unfortunately, when I switch to the Phone view, or use my website on my phone, there are no buttons. Is there a solution to this, am I missing anything?

Here is my site Read-Only: LINK
(how to share your site Read-Only link)