Check out this cool glitch that happened in Safari! I was commenting on a thread when I found the page was glitchy. I pressed "Select All" to normalize the page--until I moved something again, of course. So, I made this video to demonstrate the glitch. No scripting was used.
i feel that if you keep on doing that, some sort of hidden message will appear and tell you some sort of secret about how to find the lost city of atlantis. or somthing like that. :P ahehehehheeeheee
Dirty pixels, safari doesn't know to clear them. How the pixels get created is somewhat of a mystery, but I suspect its a rendering optimization gone wrong. Selecting all forces the browser to change the color of everything, and thus causes all the dirty pixels to update
I know what Command + A does. If you read my text above, you'd see that I understood it selects everything selectable.
However, I don't know why it'd clear up the "dirty" pixels on a screen. Selecting ≠ cleaning, but it does clean it for some reason.
Let me repeat myself a third time for you: Selecting All fixed up this glitch temporarily. Of course I know what it does because I used it; I don't know why it fixed up the glitch temporarily.
I'll repeat myself yet again, but in upside down English if it helps you understand: