| Tests adding a shadow root to a display none host doesn't leave dirty bits. | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| PASS getComputedStyle(inside).borderWidth is "0px" | |
| PASS getComputedStyle(inside).borderWidth is "10px" | |
| PASS successfullyParsed is true | |
| TEST COMPLETE | |