How (where) Can I Set Fixed Cell Size In Nested Html Tables, With Css?

There is a bunch of answer on how to set fixed cell sizes here, but I am having trouble finding where in my nested table hierarchy the parameters belong. My table is a visualizatio

Solution 1:

If the text should be cutted on the edge of the table cell you have to change the table-layout to fixed and the td needs a hidden overflow.

table{table-layout:fixed}
tabletd{overflow:hidden}

This link might help as well.