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  1. What is the difference between :before and ::before?

    May 23, 2018 · The ::before notation (with two colons) was introduced in CSS3 in order to establish a discrimination between pseudo-classes and pseudo-elements. Browsers also accept the notation …

  2. html - How does :before work in css? - Stack Overflow

    Feb 18, 2014 · The :before and :after pseudo-elements inherit any inheritable properties from the element in the document tree to which they are attached. For example, the following rules insert an …

  3. What is the difference between `before()` and `beforeEach()`?

    However, all before hooks that apply are executed before any beforeEach hook. This explains the order above: sublevel before executes before top beforeEach because it is a before hook. And with after …

  4. How do I fetch lines before/after the grep result in bash?

    Sep 16, 2012 · The command in the first pipe uses grep to print out all the text that appears a specified number of lines before the matching string, and an additional pipe operator makes grep to output the …

  5. What does *:before and *:after do in css - Stack Overflow

    Sep 27, 2015 · The pseudo-element selectors (or ::before and ::after) are used to generate content on the fly for browsers, and the results are called generated content. The generated content does not …

  6. html - what does ::before really do? - Stack Overflow

    May 18, 2014 · So I read the docs and probably understand the purpose of ::before and ::after. If my understanding is correct, they should always work in combination with other elements. But the web …

  7. css - When to use :before or :after - Stack Overflow

    Before moving to my question, I know how the :before and :after selectors work. (not a duplicate of what is ::before or ::after expression). My question is in regards to use.

  8. html - What is &::before, &::after in CSS? - Stack Overflow

    Nov 5, 2014 · Everything else is vanilla CSS, ::after, ::before are pseudo elements, .relative and .radio are class selectors, :checked is a pseudo class for input types radio and checkbox, and + is an …

  9. How can I write a ':hover' condition for 'a:before' and 'a:after'?

    Nov 28, 2021 · Hence, a:hover::before and a:visited::before. But if you're developing for legacy browsers such as IE8 and older, then you can get away with using single colons just fine. This specific order of …

  10. How to position :before & :after pseudo-elements on top of each other?

    Oct 17, 2013 · What is the stacking order of the pseudo-elements? Does :before appear below or above :after- which is better suited to be the border, and which the fill? And what is the best positioning to …