Alpha
Also written: opacity, rgba
An optional fourth value in a color, such as `rgb(0 0 0 / 50%)`, that sets how see-through the color is. Lower values let the background show through.
Also written: opacity, rgba
An optional fourth value in a color, such as `rgb(0 0 0 / 50%)`, that sets how see-through the color is. Lower values let the background show through.