The traditional script is written from top to bottom and from left to right.
Only Firefox rotates the direction of the form fields.
Chrome, Edge, Safari browsers place the form field horizontally (only in the frame).
To type directly with the computer keyboard:
Download & install the font Mongolian White
→ Cyrillic Mongolian keyboard
→ conversion: Cyrillic <> Latin Mongolian
→ conversion capital-small letters
→ Mongolian language: dictionary, pronunciation, grammar
→ Multilingual keyboard: index