GitHub 0★

Sticky header

Try to scroll the main content to see the header sticks to the top of page.
<div>
    <header class="header">
        ...
    </header>
    <main>
        ...
    </main>
</div>
.header {
                        /* Stick to the top */
                        position: sticky;
                        top: 0;
                    }

See also

Sticky sections

Sticky table column

Sticky table headers