FAQ: Mixins and the & Selector - The & Selector in Nesting

This community-built FAQ covers the “The & Selector in Nesting” exercise from the lesson “Mixins and the & Selector”.

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This exercise can be found in the following Codecademy content:

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FAQs on the exercise The & Selector in Nesting

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When it says

Recall that, in CSS, a pseudo-element is used to style parts of an element, for example:

  • Styling the content ::before or ::after the content of an element.
  • Using a pseudo class such as :hover to set the properties of an element when the user’s mouse is touching the area of the element.

Is this referring to something in the last CSS section on Grids? I’ve been through the rest of ‘Introduction to HTML’ and ‘Learn CSS’ this week and I don’t recall anything about pseudo classes. (Unless I skimmed around it somewhere…?)

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What is @include? Is this part of SASS syntax?

Okay, I realize that this will be answers in the following lessons. But that should be mentioned in the instruction…

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Typo alert: psuedo should be pseudo

Is it possible to loop through each character to flip it?