Literary Device On Clarisse

In the story Ray Bradbury uses a literary device (which is a simile) and how he uses this is on page 11 in the story Fahrenheit 451 he compares Clarisse's face to be bright as snow in the moonlight. "There was only the girl walking with him now, her face bright as snow in the moonlight" that's the textual evidence from the book.
                                                                       -Clarisse