Please advise the layout idea of this kind of dividing line.

clipboard.png

as shown in the UI diagram, there is a dividing line between the first-tier category and the second-tier category, the second-tier category and the third-tier category, and the dividing line between the two second-tier categories increases with the number of third-tier categories under the above second-tier category.

is there a better layout for this kind of dividing line? The project uses react + antd-design. Thank you in advance

Antdesign react.js javascript css html5
May.12,2022

think of an implementation: define the lower left border through pseudo classes, splice them together through absolute positioning, and then get the first pseudo class. Setting only the lower border
alone feels feasible. If you haven't tried, you can try
clipboard.png

.

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