How to insert a CSS in Dropdown Content Wrapper and Dropdown Content Element

[Joanne Ashley]

Hi, 

I am trying to put background color in my dropdown texts but could not figure out how to set it up in the macro.  I tried pasting a css text in the macro but it does not work. 

Basically, I want a dropdown with yes and no option where yes would have a green background and no would be red. 

Thank you