js禁止遮罩层下页面滚动
const modalHelper = {
scrollTop: 0,
afterOpen() {
modalHelper.scrollTop = document.scrollingElement.scrollTop
document.body.classList.add('modal-open')
document.body.style.top = -modalHelper.scrollTop + 'px'
},
beforeClose() {
document.body.classList.remove('modal-open')
document.scrollingElement.scrollTop = modalHelper.scrollTop
}
}