[css3-values] Interchangeable numbers and percentages

Why aren't numbers and percentages completely interchangeable? The % 
sign is just a constant with the value of 1/100 after all. So what 30% 
really means is the following equasion: 30 x 0.01 = 0.3. I think we 
should be able to use numbers whereever we can use percentages and vice 
versa. For example:

hsl(90, .3, .9)
opacity: 80%

Received on Wednesday, 19 October 2011 09:54:38 UTC