Squarespace CSS Help

[SuperOwnJK]

So I've made this website for a family friends business (www.andrewpaulfurniture.co.uk) on Squarespace. I need help in lowering the opacity of the big black box on the homepage of the website. I have seen other example sites on Squarespace that use the same template and have a lower opacity box. I have 0 knowledge of CSS. 

 

I have put the question on the Squarespace help site but sadly didn't get a response. 

 

Thanks

[Drown]

With CSS3 you can use something like this :

big_black_box{opacity:0.5;filter:alpha(opacity=50); }

The second line is for compatibiltiy with IE's older versions. I'm not sure wether or not this is only for images, I never used it.

 

You can also use this when assigning the background color to the box :

background-color:rgba(255,0,0,0.5);

The first three numbers are RGB values, and the third is the opacity.