这条规则取消了DIV元素的首个子元素P的缩进: div > p:first-child { text-indent: 0 } This selector would match the P inside the DIV of the following fragment: 这个选择器将匹配下面代码块中DIV元素内部的P元素: <P> The last P before the note. <DIV class="note"> <P> The first P insid...
Let's say you apply the.blue-textclass to a heading, but want to change the color of a word within the heading. Wrap the word in aspanelement, then add another ruleset with a descendent selector: After the CSS class selector.blue-text, add a space and then the type selectorspan. ...
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>class selector demo</title> <style type="text/css"> .c1 { border: 2px palegreen solid; background-color: bisque; width: 450px; font-family: consolas; } </style> </head> <body> <div class="c1"> If you're lookin...
An element type selector is a selector that targets an element by the tag name. The selector in the example below is an element type selector, because it doesn’t use a class, ID, or other selector to apply the given styles. Instead, it directly targets all HTML5<nav>elements: /*...
·Selector 1.Type Selectors (类型选择器) p{color: black;} a{text-decoration: underline} h1{font-weight: bold;} ... 2.Descendent Selectors (后代选择器) li a{text-decoration: none;} ... 3.ID Selectors & Class Selectors (ID选择器和类选择器) ...
Bootstrap 将设置全局的 CSS 样式。HTML 的基本元素均可以通过 class 设置样式并得到增强效果。还有先进的栅格系统。概览 深入了解 Bootstrap 底层结构的关键部分,包括我们让 web 开发变得更好、更快、更强壮的最佳实践。 HTML5 文档类型 Bootstrap 使用到的某些 HTML 元素和 CSS 属性需要将页面设置为 HTML5 文档...
Scoping in CSS is in the form of an@scopeat-rule that declares a block of CSS to only apply to the given selector. And optionally,stopapplying at another given selector. When should you care? You can also scope CSS by applying a class and nesting within that class. But@scopehas a ...
:is pseudo-class selector :is()The CSS pseudo-class function takes a selector list as a parameter, and selects any element in the list that can be selected by any selector. Before, for some common style settings of the same child element of multiple different parent containers, the follo...
<div class="row"> <div class="col-md-1">.col-md-1</div> <div class="col-md-1">.col-md-1</div> <div class="col-md-1">.col-md-1</div> <div class="col-md-1">.col-md-1</div> <div class="col-md-1">.col-md-1</div> <div class="col-md-1">.col-md-1</div...
cacheResults: Allow css-select to cache results for some selectors, sometimes greatly improving querying performance. Disable this if your document can change in between queries with the same compiled selector. Default:true. pseudos: A map of pseudo-class names to functions or strings. ...