Change background of checkboxes area and ...

Team:

I need your help with some CSS code that allow me to change the background of the checkbox area of my form:

1st: I want to set the current background color to red (but only the checkbox area, I don't want to change the form background)

2nd: I want that the every time that a checkbox is check-marked that color of the background change from red to green.

Is it possible?, more details of my request in the picture attached.

Best regards dear Yoda Master of the internet forms.

Hello

For now I only managed to change the background to red with this injected css:

.form-matrix-values {

      background-color: red;}