CSS selectors are used to "find" (or select) the HTML elements you want to style. Use our CSS Selector Tester to demonstrate the different selectors. The simple selectors select elements based on element-name, id, and class. In addition, there is the universal selector (*). The attribute selector selects HTML elements with a given attribute set.

CSS selectors are used to "find" (or select) the HTML elements you want to style. We can divide CSS selectors into five categories: This page will explain the most basic CSS selectors. The element selector selects HTML elements based on the element name. Here, all <p> elements on the page will be center-aligned, with a red text color:

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通用选择器（Universal Selector）：选择所有 HTML 元素。通用选择器使用 * 符号。例如，* 选择器将选择页面上的所有元素。 除了上述常见的选择器，还有伪类选择器（Pseudo-Class Selector）和伪元素选择器（Pseudo-Element Selector），用于选择元素的特定状态或位置。

6 天之前 · In CSS, selectors are patterns used to match, or select, the elements you want to style. Selectors are also used in JavaScript to enable selecting the DOM nodes to return as a NodeList. Selectors, whether used in CSS or JavaScript, enable targeting HTML elements based on their type, attributes, current states, and even position in the DOM.

6 天之前 · CSS selectors are used to define a pattern of the elements that you want to select for applying a set of CSS rules on the selected elements. Combinators define the relationship between the selectors.

2025年2月7日 · In this article we'll recap some selector fundamentals, including the basic type, class, and ID selectors, and selector lists. We'll also introduce the universal selector.

2024年12月31日 · CSS selectors are used to target HTML elements on your pages, allowing you to apply styles based on their ID, class, type attributes, and more. There are mainly 5 types of selectors. Basic CSS Selectors: These are used to target elements by tag, .class, or #id for fundamental styling needs.

2024年9月6日 · In this guide, we will cover the different ways to select elements — because the styles we write are pretty much useless without the ability to select which elements to apply them to. The source of truth for CSS selectors is documented in …

2019年12月7日 · In CSS, selectors are patterns used to select DOM elements. Here is an example of using selectors. In the following code, a and h1 are selectors: font-size 24px; } Wildcard selector. Selects all DOM elements. See below for using it with other selectors. li a DOM descendant combinator. All a tags that are a child of li tags.