CSS Code not working

Hi. The CSS code that you gave me on demo version doesnt work on paid version.
Black background and white arrow.

Thanks for your help.

.woo-multi-currency.wmc-shortcode.plain-vertical.layout4 {
line-height: 0;
}
.woo-multi-currency.wmc-shortcode.plain-vertical .wmc-currency-wrapper span.wmc-current-currency::after {
position: absolute;
right: 5px;
top: 50%;
transform: translateY(-50%);
}

.woo-multi-currency.wmc-shortcode.plain-vertical .wmc-currency-wrapper span.wmc-current-currency, .woo-multi-currency.wmc-shortcode.plain-vertical .wmc-currency-wrapper .wmc-sub-currency {
background: #222222;
color: white;
border: none;
}