Hello,
Please add following code into custom.css file.
.single_add_to_cart_button,
.btn.filled.active,
.btn.filled:hover,
.button.big{
background:#00b200;
}
.button.big{
padding: 0 50px !important;
font-size:16px;
}
Here is a video tutorial how to create custom.css: https://www.youtube.com/watch?v=Qok2zRedRMY&feature=youtu.be.
Regards,
Robert Hall.















