.header{position:sticky;top:0;z-index:1000;background:var(--paper,#faf7f2);box-shadow:0 5px 16px rgba(56,53,46,.04)}
html{scroll-padding-top:var(--lm-sticky-header-offset,180px)}
@media print{.header{position:static;box-shadow:none}html{scroll-padding-top:0}}