above:

now there is a need like this: when there is a conflict in the schedule, the schedule of the conflict should be evenly divided into the width, and the full width should be occupied when there is no conflict.
now my implementation is to use flex:1, directly to split the width of everything, but as the figure shows, 20:00-23:00 should take up the full width.
how to ask for help from the Great God?