:root {
    --root-size: 16px;
    --header-size: 6.5rem;
    --header-border-height: 1px;
    --header-logo-height: 3.5rem;
    --nav-item-height: 3.5rem;
    --menu-picker-height: 4rem;
    --menu-picker-language-width: 7rem;
    --menu-picker-reseller-width: 20rem;
    --avater-size: 2.5rem;
    --flag-size: 1.5rem;
}