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I just saw a CSS code that included ::before tag. I looked at MDN to see what the ::before is but I really didn’t understand it.
Can someone explain how it works?
Does it make a DOM element before what we select by CSS?
This distinguishes pseudo elements from pseudo classes.
The difference between pseudo classes and pseudo elements is described at http://www.d.umn.edu/~lcarlson/csswork/selectors/pseudo_dif.html