Doesn't that take the problem back to the spot where we have the header repeated for each cell? In a data attribute instead of a span, which may be cleaner, but

Doesn't that take the problem back to the spot where we have the header repeated for each cell? In a data attribute instead of a span, which may be cleaner, but still: https://codepen.io/andrelaszlo/pen/xoxmdg https://codepen.io/andrelaszlo/pen/xoxmdg Is there a way to only define the header label once and refer to them depending on the cell using only CSS?