background_target...?

[geiris]

i am calling a login form/a div, from index.html to show in flippy trought this:

$("#btn-login").on("click",function(e){
$(".flipbox").flippy({
color_target: "#131516",
direction: "bottom",
duration: "450",
content: $("#login").html(),
});
e.preventDefault();
});

now i want to change the "color_target" on line 3 to a image. its going to be the background and have the same css as the flippy box it self, because i made round corners on flippy box.

is it possible?