[bscphil]

OP is referring to the address bar (part of the browser chrome), and not the "top bar" common on news sites, which is an html element (part of the page).

[apk-d]

Admittedly, and horrifyingly, those stack.

[thaumasiotes]

The Chrome address bar doesn't do that, though.

[ajscanlan]

On Android it does.