Change the Close Box "X"

Hi there,

Yes, you should be able to do this using CSS.

.stb .stb-close {
background:url("image.png") no-repeat;
text-indent:-9999px;
width: 25px;
height: 25px;
}

That will swap out the ‘x’ for your given image. You might have to play a little with the dimensions and various offsets to make it align well.

Hope that helps!