body nav>ul{flex-direction:row;gap:1rem;display:flex}body nav>ul>li{list-style:none}body nav>ul ul[popover]:where(:popover-open){position-area:block-end span-inline-end;flex-direction:column;margin:0;display:flex}body form{gap:.5em;display:grid}body form>fieldset{gap:.5em;display:grid}