This article about Building a multi stage timetable with modern CSS using grid, subgrid, round(), and mod(), could become handy the next time you need to build a timetable on a website for a conference or festival.

Timetables are one of those components that look simple but contain a surprising amount of layout logic. For a project in 2026 I needed a version that supports multiple stages, adapts to the tallest session, and stays aligned across the entire timeline — all built in CSS.

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