deck made you both I would stay with
CSS color names: w (3)
CSS color names: y (2)
color code forms
hexadecimal number calculation: RGB
hexadecimal number calculation: A, alpha, or opacity value
1.) Multiply the opacity decimal value times 255.
2.) Fraction won’t convert to hexadecimal, so round number to the nearest whole number.
3.) Divide the result by 16 (the answer before the decimal is your first digital value for alpha)
4.) Multiply what’s behind the decimal by 16 (the answer is your second digital value for alpha
RGB number calculation: A, alpha, or opacity value
1.) take the given opacity percentage
2.) change the opacity percentage to a decimal
3.) the alpha or opacity value should be between 0.0 and 1.0
HSL number calculation
HSL hue color numbers
CSS: setting the background
Background image property order code
Background image default
Repeat-x
Repeat-y
No-repeat
Background property position values
“pc”
“em”
“ex”
“px”
The possible comprising properties of a Content box border: