1 element:first-child选择属于其父元素的首个子元素的element元素 注意:div:first-child 必须是其父元素下面的第一个子元素且必须是div元素才能匹配的到 匹配结果: 2 同理:element:last-child指定其父元素的最后一个子元素的element元素 注意:div:last-child 代表其父元素的最后一个元素一定是div才能匹配到 3:n...
1 element:first-child选择属于其父元素的首个子元素的element元素 注意:div:first-child 必须是其父元素下面的第一个子元素且必须是div元素才能匹配的到 匹配结果: 2 同理:element:last-child指定其父元素的最后一个子元素的element元素 注意:div:last-child 代表其父元素的最后一个元素一定是div才能匹配到 3:n...
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...
第一个 span第二个 span第三个 span css 代码部分: .root>span:first-child{background:red;} 最后页面效果: 可以看到第一个 span 的背景被设置为了红色。 本来这样用一直都是不错的,我一直以为这个选择器选择的是第一个 element 元素,而我以前一直也都是这样用的,也一直没出过什么差错。 但是直到最近我遇...
:first-childpseudo class apply to an element if it is first sibling in all direct child elements of its parent. Here are some examples. :first-child positive example .foo > p:first-child { background-color:lightgreen; } p1 p2 ...
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 :first-child with syntax and examples. The CSS :first-child selector allows you to target an element that is the first child element within its parent.
In CSS, the:first-childpseudo-class is used to select the first child element within a parent element. This selector is often used for styling the first element of a list or the first paragraph of a section. Syntax The:first-childselector is written with a colon followed by the keyword...
据我所知，问题是在标记中，每个链接都是:first-child（在每个标记中），所以你需要使用父对象的第一...
不同点:1、lastchild:IE6,7,8:最后一个元素节点; 非IE6,7,8:最后一个节点,文本节点或者元素节点;2、lastElementChild:IE6,7,8:不支持; 非IE6,7,8:最后一个元素节点;5、nextSibling与nextElementChild 相同点:获取后一个兄弟节点对象; 不同点:1、nextSibling:IE6,7,8:后一个兄弟元素节点; ...