TIL
CSS relative length units
ch: the width of "0" of the element's font
ex: the height of "x" of the element's font
CSS values and units - Learn web development | MDN
When to use them 🤔
They are interesting, but don't know when to use them.
ex seems like it can be a good choice for approximating line length of some paragraphs.
But I think I will just use % instead for width.
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