Opaque BG color for Browser Source

[CCMD_Trapper]

I have been trying to make the browser source background color opaque, so I can display items/alerts (currently displaying twitch channel point alerts) over it. I have tried the following code iterations with no success. Can someone assist, please?

body { background-color: rgba(255, 0, 0, 1); margin: 0px auto; overflow: hidden; } (I know solid, red...it was for testing purposes)
body { background-color: rgba(255, 0, 0, 1); opacity=1.0; margin: 0px auto; overflow: hidden; }
body { background-color: #000000; margin: 0px auto; overflow: hidden; }

Current log file: https://obsproject.com/logs/mTmZjJ5TdHRkzuIH

Thanks!

 

[RonXTCdaBass]

background-color: rgba(255, 0, 0, 1);
the code shows: (color RED, color GREEN, color BLUE, Opacity)
opacity: 1 is full visible opacity: 0 is complete invisible

you can try rgba(255, 0, 0, 0.1); for nearly invisible ^^