Created attachment 432074 [details] Video of issue Occurs when the Styles panel is narrow and the list of completions contains a mix of short and long CSS value options. Steps to reproduce: - Open WebInspector > Elements - Ensure the Styles panel is resized to its narrowest - Add a new CSS property with the name `-webkit-appearance` - Advance to the value field and use the keyboard to navigate the list of completion options Result: The list of completions shifts down to align with the value as it wraps to a new line due to a long completion option. It shifts up back when a short option is selected.
<rdar://problem/79674882>