bpm pseudo

Just contact Pseudo-class and pseudo-elements, seniors recommend to read this article, at that time read several times did not read, still feel this article obscure difficult to understand, now re-read, feel really a good article, now share to everyoneTo the blog from the Sunflower Sword @ Sword EmptyThe text is as followsThe difference between the two is really an old question. But to this day, because of

The difference between the two is really an old question. But to this day, because of various network misinformation and some irresponsible books mistakenly, there are still quite a lot of people confuse pseudo-class with pseudo-elements, even many CSS veteran. Early in the beginning of the entry, I myself was deeply misled, because the forum most of the posts do not care about the nuances of this concept,

Learning and using: before AND: after pseudo elements, after pseudo If you have been paying close attention to various web design blogs, you may have noticed that: before AND: after pseudo elements have received considerable attention in front-end development. Especially in the blog of Nicolas Gallagher, many pseudo-cl

Post: the difference and origin of CSS pseudo elements and CSS pseudo elements are described in detail. The difference between the two is actually a very old problem. However, many people confuse the pseudo-classes with the pseudo elements due to mistransmission of various types of networks and irresponsible books, and

In the process of learning CSS, it is particularly easy to confuse the two concepts: pseudo-class and pseudo-elements。 The definitions of the two are as follows: CSS pseudo-classes are used to add special effects to certain selectors. CSS Pseudo-elements are used to add special effects to certain selectors. The

The difference between the two is really an old question. But to this day, because of various network misinformation and some irresponsible books mistakenly, there are still quite a lot of people confuse pseudo-class with pseudo-elements, even many CSS veteran. Early in the beginning of the entry, I myself was deeply misled, because the forum most of the posts do not care about the nuances of this concept,

The difference between the two is really an old question. But to this day, because of various network misinformation and some irresponsible books mistakenly, there are still quite a lot of people confuse pseudo-class with pseudo-elements, even many CSS veteran. Early in the beginning of the entry, I myself was deeply misled, because the forum most of the posts do not care about the nuances of this concept,

CSS pseudo-classes are used to add special effects to certain selectors.CSS Pseudo-class (pseudo-classes) instances: Hypertext links This example shows how to add a different color to a hyperlink in a Document. Hyperlink 2 This example shows how to add additional styles to Hyperlinks. Hyperlinks-:

This article brings to you the content is about the CSS pseudo-class selector and pseudo-element selector introduction (with code), there is a certain reference value, the need for friends can refer to, I hope you have some help. First, link pseudo-class 1. Link pseudo-Class /* Link

1. Pseudo-ClassThe pseudo-class selection element is based on the state in which the current element is present, or the attributes that the element currently has, not the static flags of the element's ID, class, attributes, and so on. Because the state is dynamically changing, when an element reaches a certain state, it may get a pseudo-class style, and when the

The concept of pseudo-class and pseudo-elements in CSS is easy to confuse Let's talk about the difference between pseudo-class and pseudo-elements today. Defined First look at the definition of pseudo-class and pseudo-elements

CSS in the pseudo-class and pseudo-elements are always confused, today reference a lot of information, also looked at some of the documents, now the pseudo-class and pseudo-elements summarized as follows:First, the Origin:Pseudo-class and pseudo-elements are introduced becau

Statements in assembly language programs can be composed of commands, pseudo commands, and macro commands. Command: Each Command corresponds to a CPU operation. A pseudo-command is also called a pseudo-operation. It is an operation processed by the assembler during the compilation of the source program, they can complete functions such as processor selection, def

This article mainly introduces the details of the pseudo-class and pseudo-elements in the CSS and the difference between the two, in fact, CSS3 in the specification of a simple rough method, that is, pseudo-class with a colon before the pseudo-element is represented by two colons, so it is not easy to confuse, the need

In addition to selecting elements based on the ID (#), Class (.), attributes ([]), the element selector for CSS has an important category, which is to select elements based on their special state. They are pseudo-classes and pseudo-elements. Unlike the ID selector, class selector, property selector, and derived selectors, and so on, these get elements from the HTML document hierarchy (DOM tree), the

Definition of the standard:CSS introduces the concept of pseudo-classes and pseudo-elements in order to implement formatting based on information outside of the document tree.Pseudo-classes are:: First-child,: Link:,vistited,:hover,:active,:focus,:lang pseudo-elements are:: First-line,:first-letter,:before,:afterThe difference between

Enable the pseudo-static mode of PHP and the pseudo-static mode of php. When the pseudo-static mode of PHP is enabled, php pseudo-STATic has been developing php. during the development process, I have heard of the "pseudo-static" statement. But I have never understood it. PH

pseudo-classes and pseudo-elements are independent of the document structure. The way they get the elements is not based on the element characteristics of the ID, class, attribute, but on the element that is in a special state (pseudo-Class), or the element's special content (pseudo-element). The difference is summariz

pseudo Element We know that as the CSS specification is further improved, there are more and more new CSS artifacts, but in the daily development, we commonly used and browser support situation is more optimistic when the number of before and after. But we use it in our daily development: after {content: ";} To clear the float, and add an element (take care of the IE8 browser here using a single colon). But what are the desirable values of content?1

Css In CSS, pattern matching rules determine which element of the document tree The style rule applies to. These patterns are called selectors (selector). A CSS rule is a selector {property: Value; property: Value;} (Selector {property:value;property1:value2;} , that is, the selector determines which element the declaration (declaration) in {} matches. The selectors in CSS2.1 are: Pattern meaning described in section * matches any element. Universal Selector