Make a DIV element transparent:
The opacity property sets or returns the opacity level of an element.
The opacity-level of an element describes the transparency-level, where 1 is not transperant at all, 0.5 is 50% see-through, and 0 is completely transparent.
The opacity property is supported in all major browsers.
Note: IE8 and earlier supports an alternative, the filter property.
Return the opacity property:
Set the opacity property:
|number||Specifies the opacity. From 0.0 (fully transparent) to 1.0 (fully opaque)|
|initial||Sets this property to its default value. Read about initial|
|inherit||Inherits this property from its parent element. Read about inherit|
|Return Value:||A String, representing the opacity-level of an element|
CSS reference: opacity property