The first bookmark on my bookmark bar is "Kill floater", and it removes most floating elements on the page. It even works on many sites that hide the page behind a popup. Use it on my iPad all the time.
I cleaned up and improved this a little. Now it hides the fixed elements, unless their computed top is at 0px. Also makes the body to scroll automatically, as many sites set their body to fixed before the fixed popup is gone:
```
javascript:(function () {
var i, elements = document.querySelectorAll('body *');
var style;
document.body.style.overflow-y = 'auto'
for (i = 0; i < elements.length; i++) {
style = getComputedStyle(elements[i]);
if (style.position === 'fixed' && style.top !== "0px") {
elements[i].style.display = 'none';
}
}
The bookmarklet: