window.addEventListener('scroll', this.onPageScroll.bind(this));
}
onPageScroll() {
let scrollTopPos = document.documentElement.scrollTop || document.body.scrollTop || 0;
if (!this.showing && scrollTopPos > this.breakPoint) {
window.addEventListener('scroll', this.onPageScroll.bind(this));
}
onPageScroll() {
let scrollTopPos = document.documentElement.scrollTop || document.body.scrollTop || 0;
if (!this.showing && scrollTopPos > this.breakPoint) {