Opacity in Div Column?

[teachu]

I created a 5 column div with an image for the background. I would like 2 of column to be black with 50% opacity and containing white text. I can set the 2 columns as black but the opacity setting for the column has no effect. What value I use for opacity, the column remains solid black.

Any help?

Thanks

[nikichanko]

I tested and opacity indeed doesn't work. It wi...

[teachu]

Thank you so much for that. I really appreciat...