CSS math

math.css

/***** ceil ******/

/* For a value between 0 - 1, where 1 is the maximum possible */
--ceil: clamp(0, calc((1 - var(--value)) * 100), 1);


/***** floor ******/

/* For a value between 0 - 1, where 1 is the maximum possible, use a value just a tiny bit below the maximum for the 
 math to work, so the output will be either positive or negative when magnified by a factor of 999999*/
--floor: clamp(0, calc((var(--value) - 0.99999) * 999999), 1);