Change the color of a sale sticker

After:

Before:

Code:

/* -- code to change the background sticker color for sale products -- */
.sticker--sale {
background: #FFFFFF !important; 
	color: #111111;
	font-weight: bold;
}
/* - end - */

Notes:
You can use any hex color value. The code here is a white background: #FFFFFF; and black text color of #111111;

Additional hex colors:  http://www.colorhexa.com/web-safe-colors


Where do I add the code?

Use this link to learn where exactly to add this code snippet:

Where to add your CSS style code