Test that WebKit does not crash when we apply style to atomic elements and that the style is not applied inside atomic elements.
| <a>
|   href="a"
|   "<#selection-anchor>1"
| <progress>
|   <a>
|     style=""
|     "2"
|   <shadow:root>
|     <div>
|       pseudo="-webkit-progress-inner-element"
|       shadow:pseudoId="-webkit-progress-inner-element"
|       <div>
|         pseudo="-webkit-progress-bar"
|         shadow:pseudoId="-webkit-progress-bar"
|         <div>
|           pseudo="-webkit-progress-value"
|           style="width: -100%;"
|           shadow:pseudoId="-webkit-progress-value"
| <#selection-focus>