Good thinking. Though I don’t think it’s quite the same as the floating footer, since that only floats the footer, and my page (my main page only, not any of my other pages) floats everything up. But also, it’s not floating when I scroll down, but instead when I resize my browser window. This also has the negative effect of meaning that anyone on a lower resolution monitor sees things differently.
There must be an option just on my main/home page somewhere…
