代码语言:javascript 代码运行次数:0 运行 AI代码解释 <!DOCTYPEhtml>使用带有选择器的CSS伪类示例a.red:link{color:#ff0000;}Click meClick me 四、总结 本文基于CSS基础,介绍了CSS中的伪类,从什么是伪类,常见的伪类的用法( first-child,: last-seudo,: nth-child,: lang)最后介绍了伪类可以与CSS类结合使用...
This example illustrates the use of the pseudoClass property: @page :first { margin-left: 13cm; margin-right: 4cm; } function GetPageRule () { var styleTag = document.getElementById ("myStyle"); // the style sheet in the style tag var sheet = styleTag.sheet ? styleTag.sheet...
代码语言:javascript 复制 selector:pseudo-class { property: value; } 像常规类一样,您可以在选择器中链接尽可能多的伪类。 标准伪类的索引 :active :any :checked :default :dir() :disabled :empty :enabled :first :first-child :first-of-type :fullscreen :focus :hover :indeterminate :in-range :in...
Throughpseudo-classes, we don't require javascript or any other script for these effects. The basicsyntax of pseudo-classesas follows: selector:pseudo-class {property: value} We can also write it in another way such as follows: selector.class:pseudo-class {property: value} Themost commonly ...
Pseudo-classes in CSS are used to select and style elements based on their state or position within the document tree, without the need for adding extra classes or JavaScript.For Example, pseudo-class can be used to change color of element when mouse is hovered over it or Click a button ...
UsingPostCSS Dir Pseudo Classwill not impact selector weight, but it will require having at least one[dir]attribute in your HTML. If you don’t haveany[dir]attributes, consider using the following JavaScript: // force at least one dir attribute (this can run at any time)document.documentEle...
同时我们可以使用attr来引用元素的属性,例如这里我们可以读取id=gbin1的元素的href属性对应的值做为:after生成的伪元素内容。 如果你见到::before和::after的样式,也不用奇怪,唯一区别在于这是CSS3的伪类表示方法。 注意:上面代码中,我们在:before中生成一个图片内容: url("images/gbin1icon.png"); ,注意没有...
The :autofill pseudo-class in CSS is used to style the appearance of the element, whose value gets autofilled by the browser, indicating the user that their previous data has been saved and loaded in the form. As the user edits the field, the pseudo-class :autofill stops matching....
1.Definition: pseudo-classes The pseudo-class concept is introduced to permit selection based on information that lies outside of the document tree or that cannot be expressed using the other simple selectors. In Chinese:引入伪类概念是为了允许基于文档树之外的信息进行选择,或者使用其他简单的选择器无法...
CSS - The :first-child Pseudo-class The:first-childpseudo-class matches a specified element that is the first child of another element. Match the first element In the following example, the selector matches any element that is the first child of any element: Example p...