Created attachment 254385 [details] Screenshot for google.fi Open seamonkey, with new "Fixed Units" -> about:config -> layout.css.dpi=200 Load google.fi or next URL data:text/html,<input value="Simple Button" type=submit><input type=submit style="width:120; height:30;font-size:16;" value="styled button"> See screenshot in attachment. CSS.DPI property does not applied properly for form elements without style.
You mean the font? That's a system font -- it's measured in device pixels, and hence unaffected by the DPI setting.
Hmmm... yep... On X server with real dpi = 200 it works ok... But is it possible somehow override it? I want to do full emulation of DPI change...
Found it here, nsThebesDeviceContext::GetSystemFont
hmm.. ok if we will suppose to fix Bug 4821, by using DPI scaling... then we should somehow use override Real system font DPI..., but now it probably invalid. or wontfix ;)