Reason for Editing - Background

What is the CSS code to change the "Reason for Editing" text field background color? I'm using "Invision" forum.
As you can see the text field in this screenshot is white:

thanks

Add this to your CSS and change color in the code:

Code:

.ipbform2 dl dd input {
    background: red !important;
}

Thank you Nera that worked fine..