var button = document.createElement('div')
// Callback function to execute when mutations are observed
const callback = function(mutationsList, observer) {
for(let mutation of mutationsList) {
if (mutation.type === 'childList' && mutation.addedNodes[0].className === 'item') {
button.classList = 'mh-check-grph mh-item-233'
$(mutation.addedNodes[0]).append(button)
}
}
};