Alpha Transparency

programming web dev
1

I remember wondering ages ago how to make background colours transparent using css.

I remember I tried tiling a semi transparent gif and then png, but it lagged something shocking.

On Youtube I believe they use this:

[FONT=monospace]
[/FONT]filter: Alpha(opacity=50);

to make a background colour of a table 50% transparent.

How browser-safe is this these days? Will it work in most browsers? Is it recommended or not recommended and for what reasons?

Just want to know, because it could make a nice addition to some sites.

2

http://www.domedia.org/oveklykken/css-transparency.php

^ That explains something about it. Looks like you need different syntax for IE and Firefox though…

If you ask me, you’d be better off using a semi-transparent PNG as the background image of the table…