Uncategorized – Plumber SEO Company

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document.addEventListener('DOMContentLoaded', () => { const header = document.querySelector('.smart-header'); if (!header) return; const setHeaderHeight = () => { document.documentElement.style.setProperty('--smartHeaderH', header.offsetHeight + 'px'); }; setHeaderHeight(); window.addEventListener('resize', setHeaderHeight); let last = window.pageYOffset || 0; const delta = 8; window.addEventListener('scroll', () => { const cur = window.pageYOffset || 0; if (Math.abs(cur - last) <= delta) return; if (cur > last && cur > header.offsetHeight) { document.body.classList.add('header-hidden'); // scroll down => hide + remove gap } else { document.body.classList.remove('header-hidden'); // scroll up => show + add spacing } last = cur <= 0 ? 0 : cur; }, { passive: true }); });