Hi @truchimochi,
Thanks for using our plugins.
You can try the following code snippet:
add_action('moove_gdpr_inline_styles','gdpr_cookie_css_button_tyle_extension',10,3);
function gdpr_cookie_css_button_tyle_extension( $styles, $primary, $secondary ) {
ob_start();
?>
#moove_gdpr_cookie_info_bar.moove-gdpr-dark-scheme .moove-gdpr-info-bar-container .moove-gdpr-info-bar-content a.mgbutton:hover,
#moove_gdpr_cookie_info_bar.moove-gdpr-dark-scheme .moove-gdpr-info-bar-container .moove-gdpr-info-bar-content button.mgbutton:hover,
#moove_gdpr_cookie_modal .moove-gdpr-modal-content .moove-gdpr-modal-footer-content .moove-gdpr-button-holder a.mgbutton:hover,
#moove_gdpr_cookie_modal .moove-gdpr-modal-content .moove-gdpr-modal-footer-content .moove-gdpr-button-holder button.mgbutton:hover,
.gdpr_cookie_settings_shortcode_content .gdpr-shr-button.button-green:hover,
#moove_gdpr_cookie_modal .moove-gdpr-modal-content .moove-gdpr-modal-footer-content .moove-gdpr-button-holder a.mgbutton.moove-gdpr-modal-save-settings:hover,
#moove_gdpr_cookie_modal .moove-gdpr-modal-content .moove-gdpr-modal-footer-content .moove-gdpr-button-holder button.mgbutton.moove-gdpr-modal-save-settings:hover {
color: #fff;
background-color: #000;
border-color: #000;
}
<?php
return $styles . ob_get_clean();
}
Hope this helps.