Thuộc tính tóm tắt cho đường kẻ cột là column-rule. Bạn có thể chạy đoạn mã sau để triển khai thuộc tính column-rule.
Ví dụ
<!DOCTYPE html> <html> <head> <style> .demo { column-count: 4; column-gap: 50px; column-rule: 2px dotted orange; } </style> </head> <body> <div class = "demo"> This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. </div> </body> </html>