css: opacity
There’s an interesting site where you can use as a reference for opacity. You can check it here => http://www.mandarindesign.com/opacity.html
W3C SAYS
Opacity can be thought of conceptually as a postprocessing operation. Conceptually, after the element (including its children) is rendered into an RGBA offscreen image, the opacity setting specifies how to blend the offscreen rendering into the current composite rendering.
Name: opacity Value: <alphavalue> | inherit Initial: 1 Applies to: all elements Inherited: no Percentages: N/A Media: visual Computed value: The same as the specified value after clipping the <alphavalue> to the range [0.0,1.0].<alphavalue>
Syntactically a <number>. The uniform opacity setting to be applied across an entire object. Any values outside the range 0.0 (fully transparent) to 1.0 (fully opaque) will be clamped to this range. If the object is a container element, then the effect is as if the contents of the container element were blended against the current background using a mask where the value of each pixel of the mask is <alphavalue>.
This example uses Mozilla proprietary code in conjunction with IE code. CSS3 is not fully defined as of today (August 2004). If you remove the -moz-opacity it will look like this.
Sample code:
fade{float:left;filter:alpha(opacity=100);-moz-opacity:1.0;opacity:1.0;}
