B: '+' sinbling selector, if we don't have seconduland replaced with ali, then it is targeting thisli; which is the sinbling of firstul Works It targets all the first-of-type of ul:first-of-type, which means it goes down to the deep of the tree, might targeting something you don't want to.
原文链接:https://www.sitepoint.com/css-is-where-has-pseudo-class-selectors/[1] 作者:https://www.sitepoint.com/author/craig-buckler/[2] 总览 CSS选择器允许你通过类型、属性、位于HTML文档中的位置来选择元素。本教程阐述了三个新选项:is()、:where()和:has()。 选择器通常在样式表中使用。下面的示...
或者你可以添加调试风格,比如突出显示所有的<figure>元素,而不带内部的img: figure:not(:has(img)) { border: 3px solid red; } 在你进入你的编辑器并重构你的CSS代码库之前,请注意:has()是新的,支持比:is()和:where()更有限。它可以在Safari 15.4+和Chrome 101+中使用,但它应该在2023年之前广泛使用。
我们通过div:has(.g-test-has)选择器,意思是,选择 div 下存在 class 为.g-test-has的 div 元素。 注意,这里选择的不是:has()内包裹的选择器选中的元素,而是使用:has()伪类的宿主元素。 效果如下: 可以看到,由于第二个 div 下存在 class 为.g-test-has的元素,因此第二个 div 被加上了 border。 :has...
class selector: .classname ID selector: #idName universal selector: * ns|* *|* attribute selector [attr=value] Combinators adjacent sibling selectors A+B General sibling selectors A~B Child selectors A>B Descendant Selectors A B Pseudo-elements ...
:has()The CSS :has() pseudo-class selects elements that contain other elements that match the selector passed into its arguments. It’s often […] .element:has(img) { }Continue Reading :hoverThe :hover pseudo class in CSS selects elements when the mouse cursor is current over them. It...
ID 选择器(ID Selector):通过元素的唯一标识符(ID)选择 HTML 元素。 ID 选择器以#开头,后面跟着 ID 名称。 如下代码,#runoob选择器将选择具有 ID 为"runoob"的元素。 #runoob {width:200px;} 属性选择器(Attribute Selector):通过元素的属性选择 HTML 元素。属性选择器可以根据属性名和属性值进行选择。
基本的选择器规则(Selector) 类型(Type)选择器 类(Class)选择器 ID 选择器 参数(Attribute)选择器 通配符 组合选择器(Combinator) 子选择器和后代选择器 兄弟选择器和相邻兄弟选择器 选择器列表 伪类(Pseudo-Classes) 链接和按钮相关 表单输入相关 DOM 子节点相关 DOM 相关的其他伪类 其他 伪元素(Pseudo-elements...
The CSS:has()pseudo-class provides the ability to apply CSS styles to an element based on its content, opening up new possibilities for styling and layout customization. In this comprehensive guide, we will explore the various aspects of using:has()as a CSS parent selector. ...
The way I think about:hasis this:it’s a parent selector pseudo-class. That is CSS-speak for “it lets you change the parent element if it has a child or another element that follows it.” This might feel weird! It might break your mental model of how CSS works. This is how I’...