MediaWiki:Common.js

document.addEventListener('DOMContentLoaded', function () {
    var closeButton = document.getElementById('sitenotice-close');
    if (closeButton) {
        closeButton.addEventListener('click', function () {
            var banner = document.getElementById('sitenotice-banner');
            if (banner) {
                banner.style.display = 'none';
            }
        });
    }
});