size and position input fields better

use constant, absolute positioning for height so it isn't messed up by
differently sized browser windows
wrap args passed to field into FieldInput record
on bad input, show a hint below the field
more lenient hex parsing

allow spaces between bytes
change format of hsl to match elm function

parse and print hsl strings as arguments passed to `hsl`
write (a too long?) hint for hsl
styling, show results as curried function calls

adjust the styling of fields

show results like an elm function call, so they can be copied directly
into elm code