Hi there,  I am trying to make the background semi-transparant and use a failsafe method incase transparency is not supported:   .form-all {  

Hi there, 

I am trying to make the background semi-transparant and use a failsafe method incase transparency is not supported:

.form-all {

  background-color: rgb(0,0,0); !important;

  background-color: rgba(0,0,0,0.5); !important;

}

I injected this code in the form, but it does not work. What goes wrong?

I noticed that you have an extra semi-colon ";" in your css, after the numeric value.

.form-all {

  background-color: rgb(0,0,0); !important;

  background-color: rgba(0,0,0,0.5); !important;

}

Once you remove this characters, your code will work properly.