Minification of '0'

[eGavr]

Hi!
Look at this test:

.a {
    b: (0.1em) (000.001) (010.00) (.0s)
}

After cleancss we get:

.a{b:(0.1em) (000.001) (010) (s)}

What about the removing of all unnecessary nulls and spaces between the values?

0.1em => .1em
000.001 => .001
010.00 => 10

[GoalSmashers]

If you would be so kind to give us a real-world example of a cross-browser CSS code in action we would be glad to fix it!

[eGavr]

Here it is

a {
    color: rgba(0, 0, 0, .0)
}

is minimized to

a{color:rgba(0,0,0,)}

It is invalid, isn't it?

Moreover cleancss replaces .0, wherever it is met, on '' (empty string)

[eGavr]

Or, for example, such kind of code

h {font-size:040px;}

is minimized to

h{font-size:040px}

It is valid , yes! But it is possible to replace 040px on 40px and won one symbol in minimization!

Such values can be minimized too

-0px  => 0
-0 => 0
0.0em => 0

etc.