The width classes come in fractions of one, two, three, four, five, six, eight, ten, and twelve.
…, n-fifths, …,
…, n-sixths, …,
…, n-eighths, …,
…, n-tenths, …,
…, n-twelfths, …,
It is sometimes necessary to further adjust the widths across different devices in favor of usability.
If you want an element to have a certain size in one state and another size in another state, you can use
the state-specific width classes by adding one or more of the usual state prefixes palm-,
lap- or desk-.