4.1 Firefox x-viewport CSS class on HTML Tag causes height problems

[neongrau]

in the ext css files there is this:

.x-viewport, .x-viewport body {
    border: 0 none;
    height: 100%;
    margin: 0;
    overflow: hidden;
    padding: 0;
    position: static;
}

the "position: static" on the HTML tag makes the actual page 200% high.
WHen pressing spacebar without being in an input field causes the browser to scroll below the Layout within the viewport.

Changing the position to anything else (relative/absolute) or even just remove the declaration fixes this.

What is it needed for?

[mitchellsimoens]

static is the default for position rule.

[neongrau]

Default for what reason?

Adding this into my CSS

.x-viewport, .x-viewport BODY {
  position: relative !important;
}

Fixed it in Firefox for me. Which had the same effect as just removing it via Firebug:

firefix.png

[evant]

What version of FF? Could you post a short test case?