CSS 之pseudo-classes 与pseudo-element的异同 从W3School找到相关资料如下: 伪类: 伪类存在的意义是为了通过选择器找到那些不存在与DOM树中的信息以及不能被常规CSS选择器获取到的信息。 伪类由一个冒号:开头,冒号后面是伪类的名称和包含在圆括号中的可选参数。 任何常规选择器可以再任何位置使用伪类。伪类语法不区别...
This is used to style specified parts of an element. Syntax: – selector::pseudo-element { property:value; } Ex: – p::first-letter { color: red; } ::first-letter ::first-line ::selection ::before ::after ::first-letter- This is used to add a style to the first letter of the...
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 { color: blue; } 1. 2. 3. 4. 5. <!DOCTYPE html> ...
DOCTYPE html>p::first-line{color:#ff0000;font-variant:small-caps;}You can use the ::first-line pseudo-element to add a special effect to the first line of a text. Some more text. And even more, and more, and more, and more, and more, and more, and more, and more, and more,...
A CSS pseudo-element is a keyword added to a selector that lets you style a specific part of the selected element(s).
CSS Pseudo-classes What is pseudo class in CSS? What are pseudo elements? Can Shadow DOM elements inherit CSS? How to select multiple elements using CSS? CSS Pseudo-elements What are Pseudo-Elements? An CSS pseudo-element is utilized to format specific sections of a component. ...
s technical definition, a pseudo-class is basically a phantom state or specific characteristic of an element that can be targeted with CSS. A few common pseudo-classes are:link,:visited,:hover,:active,:first-childand:nth-child. There are more, and we’re going to see them all in a ...
The single-colon syntax was used for both pseudo-classes and pseudo-elements in CSS2 and CSS1. For backward compatibility, the single-colon syntax is acceptable for CSS2 and CSS1 pseudo-elements. The ::first-letter Pseudo-element The::first-letterpseudo-element is used to add a special styl...
CSS Pseudo-elementsThe CSS pseudo-elements is a ways to style elements of the document that weren't explicitly defined by a position in the document tree.What is Pseudo-elementThe CSS pseudo-elements allow you to style the elements or parts of the elements without adding any IDs or classes ...
This class is basically used to add special style to the element that is the first child of another element. div>p:first-child{text-indent:25px;color:#FF00FF;}Here INCLUDEHELP is intendentHere INCLUDEHELP is not indentedBut this will not change the paragraph in HTML document:Here INCLUDEHE...