I have been having this issue since purchasing SitePad, but my website can never optimise to mobile devices no matter what I do. I've even customised the website in the mobile and tablet viewer in the editor. It seems to always want to mesh between desktop and tablet (it never wants to do mobile phone layout for some reason).
I have tried doing a template and not touch it but it still refuses to be responsive. IE the title font is different from what I see in editor, texts are not formatting correctly and some words are split to fit screen rather than resizing, header and footers go out of whack, and videos/photos are rescaling weirdly or scaling when I don't want it to (Home page).
Some help would be appreciated as I am wanting to make this website public but at its state it's terrible.