Adding Fallback Value to CSS var results in no change to CSS Image #17840
Description
Describe your problem and - if possible - how to reproduce it
Basic CSS: Attach a Fallback value to a CSS Variable, when you add black as a Fallback Value to var(--penguin-skin) there is no change in the CSS Penguin image. The last note in the exercise states "This style will be applied because of a typo in the variable name." however there is no typo in the variable name. if I add a typo to the variable name the penguin top and bottom background change to black.
I am not sure if the intent is for the penguin background to change black or to have the user add a typo to the css var name to have the penguin background change black. Maybe a clarification on the instructions would be helpful. Thank you.
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- Browser Name: Safari
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- Operating System: macOS High Sierra ver 10.13.4
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