... Contact information – AS3 Apparel Shop /* * Header calculation functions for maintaining CSS variables * Mimic calculateHeaderGroupHeight() in utilities.js */ const header = document.querySelector('header-component'); const headerGroup = document.querySelector('#header-group'); const hasHeaderSection = headerGroup?.querySelector('.header-section'); if (!header || !headerGroup) return; const headerTopRow = header.querySelector('.header__row--top'); const headerHeight = header.offsetHeight; // Calculate the total height of the header group let headerGroupHeight = 0; const children = headerGroup.children; for (let i = 0; i < children.length; i++) { const element = children[i]; if (element === header || !(element instanceof HTMLElement)) continue; headerGroupHeight += element.offsetHeight; } // Check for transparent header special case if (header.hasAttribute('transparent') && header.parentElement?.nextElementSibling) { headerGroupHeight += headerHeight;