CSS pseudo-elements and pseudo-classes may be confusing for students who just learn CSS, as the official documentation explains: CSS pseudo-classes are used to add special effects to certain selectors, and CSS pseudo-elements are used to add special
Pseudo classSets the special effect of the element itself, based on the state or attributes that the current element is in.
A:link any links that are not clicked;
a:visited matches more links that have been clicked;
A:active matches
First chapter: CSS and DocumentationHTML is a structured language, CSS is a style language, HTML is mainly used to be a powerful search engine better index, better let a blind person through the Voice browser to understand our web page, which is why
I. The relationship between HTML and CSS1. HTML is the carrier of Web content. The content is the information that the Web creator puts on the page to let the user browse, can contain text, picture, video and so on.2. CSS style is performance. Just
QT Style Sheet Grammar English originalQSS's terminology and syntax are almost the same as HTML CSS, and if you are already familiar with CSS, you can quickly browse through this article. style rules
A style sheet is made up of a series of style
/proc is a pseudo-file system that is used as an interface for kernel data structures, not just to explain that most of the files in/dev/kmem./proc are read-only, but you can also change kernel variables by writing some files.The following is a
PHP game programming 25 script code. Listing 1. simple throttling many games and game systems need dice. Let's start with the simple part: throw a six-sided dice. In fact, rolling a six-sided dice is from the list 1. simple throw...
Many games and
This book was published in 2009, so some knowledge ... You know.
Some of my familiar knowledge points, it is not recorded, so want to know more details, or to read the book it.
The dark gray mark part, is my own understanding, has the wrong
Listing 1: A simple dice roll
Many games and game systems require dice. Let's start with a simple section: Throw a six-sided dice. In fact, scrolling a six-sided dice selects a random number from 1 to 6. In PHP, this is very simple: echo rand (1,6);.
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