:is(ul) li {}
:is(ul, ol) li {}
:is(header, main, footer) p:hover {}
div:is(.cool, .fun) {}
:is(ol, ul, menu, dir) :is(ol, ul, menu, dir) :is(ul, menu, dir) {}
*:is(:hover, :focus) {}
*:is(*:hover, *:focus) {}
:is(ul, ol, .list) > [hidden] {}
:is(p, p:unsupported) {}
:is(:valid, :unsupported) {}
a:is(:not(:hover)) {}
:is(section, article, aside, nav) :is(h1, h2, h3, h4, h5, h6) {}
:-webkit-any(header, main, footer) p:hover {}
:-moz-any(header, main, footer) p:hover {}
:matches(header, main, footer) p:hover {}
:is(header, main, footer) p:hover {}
