Hi Steve,
Try adding this to your theme’s style.css file, replacing example.com with your website’s domain:
label.s2member-pro-authnet-form-card-type-visa-label
{
background: url('http://example.com/wp-content/plugins/s2member-pro/images/visa-card.png') no-repeat top center !important;
}
label.s2member-pro-authnet-form-card-type-mastercard-label
{
background: url('http://example.com/wp-content/plugins/s2member-pro/images/mastercard-card.png') no-repeat top center !important;
}
label.s2member-pro-authnet-form-card-type-amex-label
{
background: url('http://example.com/wp-content/plugins/s2member-pro/images/amex-card.png') no-repeat top center !important;
}
label.s2member-pro-authnet-form-card-type-discover-label
{
background: url('http://example.com/wp-content/plugins/s2member-pro/images/discover-card.png') no-repeat top center !important;
}
label.s2member-pro-authnet-form-card-type-maestro-label
{
background: url('http://example.com/wp-content/plugins/s2member-pro/images/maestro-card.png') no-repeat top center !important;
}
label.s2member-pro-authnet-form-card-type-solo-label
{
background: url('http://example.com/wp-content/plugins/s2member-pro/images/solo-card.png') no-repeat top center !important;
}