Decrease value: -, increase value: +.
Using the shortcut is depend on browser. Only the most commonly used browsers are listed below.
| Shortcuts | Browser, operating system |
|---|---|
| ⎇ Alt+- ⎇ Alt++ |
Chrome / Opera ( FreeBSD, Linux, Windows), Edge / Internet Explorer ( Windows) |
| ⎇ Alt+⇧ Shift+- ⎇ Alt+⇧ Shift++ |
Firefox ( FreeBSD, Linux, Windows), Chrome / Opera (sometimes) |
| ^ Ctrl+⌥ Opt+- ^ Ctrl+⌥ Opt++ |
Safari/ Chrome / Opera / Firefox ( macOS) |