Method a: Use background: RGBA ( 130., 130., 130., 0.4); This method can only make itself transparent div, as shown in
Method two: Opacity: 0.5; not transparent background, which also followed transparent content
Method a: Use background: RGBA ( 130., 130., 130., 0.4); This method can only make itself transparent div, as shown in
Method two: Opacity: 0.5; not transparent background, which also followed transparent content