<!DOCTYPE html> <meta charset="UTF-8"> <title>Nesting pseudo element selectors should not crash</title> <link rel="help" href="https://crbug.com/1376227"> <link rel="help" href="https://github.com/w3c/csswg-drafts/issues/7912"> <style> div::part(x) { & { color: red; } } </style>