-moz-opacity | NN 6 IE n/a CSS n/a
| Inherited: No
Controls the level of opacity of the element. The lower the value, the more transparent the element becomes. This is the proprietary Mozilla version of the proprietary Microsoft opaque filter.
CSS Syntax
    -moz-opacity: alphaValue
Value
The level of opacity is determined by a floating-point number between 0.0 and 1.0. A completely opaque rendering occurs at a value of 1.0. You may also use percentage values between 0% and 100%, but the proposed CSS3 recommendation for the opacity attribute calls for numbers only.
Initial Value
1
Example
    div#watermark {-moz-opacity:0.4}
Applies To
All elements.
Object Model Reference
    [window.]document.getElementById("elementID").style.MozOpacity