Have you perchance been viewing the Python documentation in Safari on Lion, and been frustrated that the overlay scroll bars can barely be seen?

This CSS, applied with Kridsada Thanabulpong’s User CSS extension, should remedy the situation.

body {
    background-color: white !important;
}

There is no change to the appearance of the page as the body element is completely covered. Update: The footer at the bottom of the page becomes unreadable white text on a white background, but whatever.