Implementing Vertical Form ControlsSafari 17.4 adds vertical writing mode support for form control elements across macOS, iOS, iPadOS, and visionOS. Setting written text vertically is commonly observed in East Asian languages. For example, Chinese, Japanese, and Korean (CJK) may be written vertically and read top-to-bottom, flowing in lines from right to left. Similarly, Traditional Mongolian is a vertical script that flows in line
