Syntax
CSS
rgba()
Values
<rgba()> =
[ <legacy-rgba-syntax> | <modern-rgba-syntax> ]<legacy-rgba-syntax> =
rgba(
<percentage>#{3},
<alpha-value>?
) |
rgba(
<number>#{3},
<alpha-value>?
)<percentage>
Specifies the percentage using a number followed by a percent sign (%).
<alpha-value> =
<number> |
<percentage><number>
An integer or zero or more decimal digits followed by a dot (.) followed by one or more decimal digits. The first character may be preceded by a sign (- or +). The last character may be succeeded by an exponent (e or E) and an integer.
<percentage>
Specifies the percentage using a number followed by a percent sign (%).
<number>
An integer or zero or more decimal digits followed by a dot (.) followed by one or more decimal digits. The first character may be preceded by a sign (- or +). The last character may be succeeded by an exponent (e or E) and an integer.
<modern-rgba-syntax> =
rgba(
[ <number> | <percentage> | none ]{3}
[ / [ <alpha-value> | none ] ]?
)<number>
An integer or zero or more decimal digits followed by a dot (.) followed by one or more decimal digits. The first character may be preceded by a sign (- or +). The last character may be succeeded by an exponent (e or E) and an integer.
<percentage>
Specifies the percentage using a number followed by a percent sign (%).
none
Specifies a missing component.
<alpha-value> =
<number> |
<percentage><number>
An integer or zero or more decimal digits followed by a dot (.) followed by one or more decimal digits. The first character may be preceded by a sign (- or +). The last character may be succeeded by an exponent (e or E) and an integer.
<percentage>
Specifies the percentage using a number followed by a percent sign (%).
