Secondary button color
To change the text, background and border color of the smaller (secondary) buttons, use this CSS:
/* normal button state: */
.ecwid .ecwid-btn--secondary {
color: black;
border-color: black;
background-color: white;
}
/* hover button state: */
.ecwid .ecwid-btn--secondary:hover {
color: red;
border-color: red;
background-color: gray;
}