demo · v135

overflow-inline / overflow-block

Stop tying your scroll behaviour to physical X and Y. overflow-inline and overflow-block follow the writing mode, so the same rule does the right thing in horizontal English and vertical Japanese.

overflow-inline: ?

writing-mode

overflow-inline

overflow-block

This sentence is very long so that the inline (text) direction overflows the box. Try switching writing-mode and see how the overflow direction stays "inline" without you having to rename overflow-x.

see also