9 Answers · The CSS color name transparent creates a completely transparent color. · Using rgba or hsla color functions, that allow you to add the ... ... <看更多>

Sets a color to fill up the background of an element it is applied to and accepts any valid CSS color. Overview table. Initial value: transparent; Applies to ... ... <看更多>

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It seems this is translated by the browser into: background-color: rgba(121, 210, 209, 0.498); . ... <看更多>

In GIMP 2.10.14 : layer -> transparency -> add alpha channel. Then follow the following steps. In newer versions color to alpha doesn't ... ... <看更多>