Writing Mode

Set whether lines of text are laid out horizontally or vertically.

This feature is well established and works across many devices and browser versions.

Chrome

Edge

Firefox

Safari

wm-htb

writing-mode: horizontal-tb;

wm-slr

writing-mode: sideways-lr;

wm-srl

writing-mode: sideways-rl;

wm-vlr

writing-mode: vertical-lr;

wm-vrl

writing-mode: vertical-rl;

Prefix a class with a breakpoint to apply it from that width up.

Prefix a class with a state to apply it only while that state matches.