div a:nth-child(7) 也不难。 第二个呢,可以这么写 div a:first-child+a 可是倒数第二个该怎么写呢? 最终我还是找到了css标准 http://www.w3.org/TR/selectors/#nth-last-child-pseudo 也许这个是学习css的最佳途径
Selecting Child Elements with CSS - The CSS child combinator is used to select all child elements of a parent element. The CSS descendant combinator is used to select all descendants of a parent element Child combinator The CSS child combinator is used t
As a web developer, you may have encountered scenarios where you need to apply specific styles to the first child element within a parent container. This is wheretheCSS:first-child selectorcomes in handy. In this post, we will explore the:first-child selector,understand its usage, and provi...
This CSS tutorial explains how to use the CSS selector called :only-child with syntax and examples. The CSS :only-child selector allows you to target an element that is the only child element within its parent.
The :first-child selector matches the first child element.:first-child is a Pseudo-class and it applies to any element that is the first child of another element. With :first-child pseudo-class, an element is matched only when it is the first child of another element. For example, p:...
This CSS tutorial explains how to use the CSS selector called :nth-child with syntax and examples. The CSS :nth-child selector allows you to target an element that is the nth child element within its parent.
SelectorExampleExample description elementpSelects all <p> elements #id#firstnameSelects the element with id="firstname" **Selects all elements .class.intro p.introSelects all elements with class="intro" Selects all <p> elements with class="intro" ...
For example, li:nth-child(1) would select the first child element, li:nth-child(2) would select the second child element, and so on. You can see this in action in the CodePen below:It’s important to note that the :nth-child selector will select all the child elements of a ...
element. */div:has(p){background-color:blue;}/* Select all <div> elements that contain a child element with the class "important". */div:has(.important){border:1px solid black;}/* Select all <div> elements that contain at least two child elements. */div:has(>*+*){padding:10px;...
element = wd.find_element_by_id('idValue') 1. 2. 3. 2.3 根据class属性 根据class属性选择元素的语法是在class值前面加上一个点:.className # 选择所有class属性值为hot-title的元素 elements = wd.find_elements_by_css_selector('.hot-title') ...