var pofig = document.querySelector('#pofig')
document.addEventListener('keydown', function(event) {
if (event.code === 'KeyZ' && (event.ctrlKey)) {
pofig.style.display = 'flex';
} else if (event.code === 'KeyX' && (event.ctrlKey)) {
pofig.style.display = 'none';
}
});