VERTICAL_WRITING
Indicates that the content can be laid out vertically (e.g, using the vertical-rl of css-writing-modes-3). This value should only be set when the language of the content allows both horizontal and vertical directions.
Indicates that the content can be laid out vertically (e.g, using the vertical-rl of css-writing-modes-3). This value should only be set when the language of the content allows both horizontal and vertical directions.