0%)", "rgb(230, 51, 51)"], // hwb(0 20% 10%)
    ["hwb(calc(0 / 0) 20% 10%)", "rgb(230, 51, 51)"], // hwb(0 20% 10%)
    ["hwb(90 20% 10% / calc(infinity))", "rgb(140, 230, 51)"], // hwb(90 20% 10%)
    ["hwb(90 20% 10% / calc(-infinity))", "rgba(140, 230, 51, 0)"], // hwb(90 20% 10% / 0)
    ["hwb(90 20% 10% / calc(0 / 0))", "rgba(140, 230, 51, 0)"], // hwb(90 20% 10% / 0)

    // calc(50% + (sign(1em - 10px) * 10%)) cannot be evaluated eagerly because font relative units are not yet known at parse time.
 