CSS – attr() Function
The attr() function returns the value of an attribute of the selected element, and is sometimes used to show the value of the href attribute after a link.
CSS – calc() Function
The calc() function performs a mathematical calculation to be used as the property value.
CSS – conic-gradient() Function
The conic-gradient() function sets a conic gradient as the background image with at least two color transitions rotated around a center point.
CSS – counter() Function
The counter() function returns the current value of the named counter as a string.
CSS – cubic-bezier() Function
The cubic-bezier() function describes a curve that is defined by four points P0 (starting point/state), P1, P2, and P3 (ending point/state).
CSS – hsl() Function
The HSL color value is specified with the hsl() function, which has the following syntax: hsl(hue, saturation, lightness).
CSS – max() Function
The max() function uses the largest value, from a comma-separated list of values, as the property value.
CSS – hsla() Function
The HSLA color value is specified with the hsla() function, which has the following syntax: hsla(hue, saturation, lightness, alpha).
CSS – min() Function
The min() function uses the smallest value, from a comma-separated list of values, as the property value.
CSS – linear-gradient() Function
The linear-gradient() function sets a linear gradient as the background image.
CSS – radial-gradient() Function
The radial-gradient() function sets a radial gradient as the background image.
CSS – repeating-linear-gradient Function
The repeating-linear-gradient() function is used to repeat linear gradients.
CSS – repeating-conic-gradient Function
The repeating-conic-gradient() function is used to repeat conic gradients.
CSS – rgb() Function
An RGB color value is specified with the rgb() function, which has the following syntax: rgb(red, green, blue).
CSS – repeating-radial-gradient Function
The repeating-radial-gradient() function is used to repeat radial gradients.
CSS – rgba() Function
An RGBA color value is specified with the rgba() function, which has the following syntax: rgba(red, green, blue, alpha).
CSS – var() Function
The var() function is used to create a CSS variable and insert the value into a property.