Canvas overlay problems, positioning + different screen resolutions

[tbx]

There are several (site-specific) problems with the canvas overlays:

• Canvas overlay messes up on e.g. the new http://google.com or on http://fffff.at -> ?? just a css fixed position !important fix?
• Sometimes the drawing is extremely off, like 1000px to the left -> css position fixed !important ?
• Different Screen resolutions: We need to come up with a "hybrid" solution. Tags can't be stretched, but they should be centered on the webpage (very tricky but interesting problem).

[jamiew]

Hmm, horizontal centering seems the best solution to me. For vertical positioning we probably need to store the viewport coordinates, since you can tag a page if you are scrolled down, right? GML has fields for this (LaserTag uses them for scaling)

!important should also work for overriding existing CSS selectors