Timothy Horton details how to design websites around the notch, to take full advantage of the iPhone X’s display:
Out of the box, Safari displays your existing websites beautifully on the edge-to-edge display of the new iPhone X. Content is automatically inset within the display’s safe area so it is not obscured by the rounded corners, or the device’s sensor housing.
I’m curious to see how websites will creatively use the notch to their benefit. I have a few ideas myself, but nothing solid yet.