I am on Mac OS X 10.6 using Opera 11.52. There is a certain site that should not be displaying aliased text, but it is. The text on that page should appear to be this, but instead it is this. I want it to appear as it should.
To my understanding, Macs automatically anti-alias all text, and you can't change it on a site to site basis.
To add on to what Misty said, Opera respects your operating system's font rendering settings, and uses those settings to render fonts across all pages. CSS anti-alias properties on individual pages are ignored by browsers.