Currently the tables (I think all?) are using table-layout: fixed, thus all columns will get the same width by default. This should be configurable for all tables to use table-layout: auto instead, which will make the column width automatically be determined. I would even suggest making it the default value, though this might break existing usage, since I think it's the value needed more often, and just in some special cases you actually don't care about the content of the columns and actually want them to be distributed evenly.