<!doctype html>
<html>
<head>
<style>
    * {
        background-color: blue;
        color: black;
        border: 5px solid black;
    }
    html, body, p {
        background-color: white;
        color: black;
    }
    target {
        background-color: green;
    }

    :is(#foo, .bar, target.notthere, *, foo>bar) {
        background-color: white;
        color: blue;
        border: none;
    }
    * {
        color: white;
    }
</style>
</head>
<body>
    <target>Target</target>
</body>
</html>