When you click on what will happen? The font will change back to the default setting.
The document will change back to the last time you saved it.
The last step will be undone.
The last step will be redone.

I thought reload the page but maybe undone

there is no universally accepted definition of art. although commonly used to describe something of beauty, or a skill which produces an aesthetic result, there is no clear line in principle between (say) a unique piece of handmade sculpture, and a mass-produced but visually attractive item. we might say that art requires thought - some kind of creative impulse - but this raises more questions: for example, how much thought is required? if someone flings paint at a canvas, hoping by this action to create a work of art, does the result automatically constitute art?

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