bpm pseudo

The magic effect written by the pseudo elements before and after, and the pseudo element beforeafter Everyone knows that before and after can write a lot of good results. Today, I accidentally saw a good one. I wrote it by the way and reviewed the differences between pseudo elements and pseudo classes, domo address: h

How to differentiate pseudo-elements-when the purple little yellow person was writing a webpage some time ago, the CSS pseudo element: after was used to implement the style, so I revisited the pseudo classes and pseudo elements. It is usually used out during implementation, but it is a bit confusing to distinguish the

First, read the w3c definition of both: css Pseudo-classes are used to add special effects to certain selectors. css Pseudo elements are used to add special effects to certain selectors. Can be clear two points, the first two are related to selectors, the second is to add some "special" effect. The special point here is that the two describe css somet

one:: Before : usage of after: BeforeAs with the name of a pseudo-element, :before it is used to insert new content before the content of the specified element. To illustrate:. Before:before{content: ' You before '; color:red;} class= "before"> mediv>Here we add a property to the pseudo-element :before content and assign the value to you before . Let's look at the effect:menew content was added before the

This article shows you the pseudo-class and pseudo-elements of CSS, the introduction of a very comprehensive, recommended here for everyone to refer to.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, attr

Some time ago when writing web pages, using the pseudo-elements of CSS: After to implement the style, so revisit the pseudo-class and pseudo-elements. The time to realize it is to take it out, but it's a bit confusing when it comes to distinguishing between the two concepts.First, look at W3s's definition of pseudo-cla

CSSPseudo-classes are used to add special effects to certain selectors. CSSPseudo-elements are used to add special effects to certain selectors. Can be clear two points, the first two are related to selectors, the second is to add some "special" effect. The special point here is that the two describe css something else that cannot be described.Pseudo-Class typesPseudo element KindDifferenceThis :first-child is compared by pseudo-class and

Pseudo-Class in 1.CSS CSS pseudo-classes are used to add special effects to certain selectors. Grammar:selectorpseudo-class{property: value}CSS classes can also be used in conjunction with pseudo-classesselector.class: pseudo-class {property: value}As in the following section of code:a#FF0000}a class="red

In the introduction of pseudo-StaticAfter the addition of two nouns, parsing static URLs: pure static HTML document, can use filetype:htm query to the Web page, dynamic URL: Content in the database, according to the requirements to display content, URL in the? # Show different parameters, such as: news.php? lang=cnclass=1id=2 pseudo-Staticis relatively true and static in terms of.First, what is static tec

The effect of a pseudo-class can be achieved by adding an actual class, while the effect of the pseudo-element needs to be achieved by adding an actual element.Here's an example of this sentence.Pseudo-Class: First-childUse pseudo-class to select the first paragraphDiv P:first-child{background-color:orang;}If we do not use ps