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 …
What is the ::before or ::after expression, and why is it shown in the ...
Oct 18, 2014 · The updated answer still doesn't explain the behavior of ::before /::after pseudo-elements properly. And the quoted phrase, also, is not relevant. The question is about why they are shown in …
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 …
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 …
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 …
java - Difference between @Before, @BeforeClass, @BeforeEach and ...
Nov 30, 2013 · The code marked @Before is executed before each test, while @BeforeClass runs once before the entire test fixture. If your test class has ten tests, @Before code will be executed ten …
How can I write a ':hover' condition for 'a:before' and 'a:after'?
Apr 25, 2011 · 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 …
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 …
Why use * selector in combination with *::before and *::after
Jul 9, 2015 · 4 ::after and ::before are pseudo elements and they insert the style after or before the element correspondingly. For your question with *::after and *::before is used to manage appearing …
html - What do ::before and ::after mean? - Stack Overflow
Mar 18, 2014 · One thing that ::before and ::after have in common and MUST have to work, is the content attribute. If it doesn't have a content attribute it wont show up. Don't mistake this as having a …