css选择器非常之多,常见的如class选择器,id选择器,标签选择器等等。每个的用法都有所区别,虽然很多都能到达同样的效果,但还是有一些更优的选择。 class、id、标签选择器 这个几个就不细说了,class和标签选择器主要用来设置样式上面,id选择器推荐不要用在css样式上,更多是用在js操作dom时,选择元素。 如: 代码语...
CSS Simple Selectors The simple selectors select elements based on element-name, id, and class. In addition, there is the universal selector (*). SelectorExampleExample description elementpSelects all elements #id#firstnameSelects the element with id="firstname" **...
To group selectors, separate each selector with a comma. Example In this example we have grouped the selectors from the code above: h1, h2, p{ text-align:center; color:red; } Try it Yourself » All CSS Simple Selectors Video: CSS Simple Selectors ...
e.g..header-group:has(h2 .subtitle). In the example, the chained:has()selectors say, “Select thiselement only if the.header-grouphas anelement and thathas a.subtitle.” Conversely, the
CSS selectors tell the browser where to apply the web fonts you're using, as well as the weight and style of the font to use for the text. Using the font-family names in your CSS The Web Projects page lists the CSS font-family name, numerical weight, and font style for each font...
It’s also a good idea to keep up with any trends or concerns with sibling selector compatibility. Thorough Testing: Even though CSS selectors are widely used and supported by practically every one of the modern browser versions, testing the Sibling selectors is still important to make sure ...
5.4 Type selectors类型选择器Atype selectormatches the name of a document language element type. A type selector matches every instance of the element type in the document tree. 一个类型选择器匹配某个文档语言的元素类型的名称。在一个文档树中,一个类型选择器可以匹配所有该元素类型的实例。 Example(...
Css selector更快(CSS selectors are faster) Css是一种基于JQuery的定位策略(CSS is JQuery's locating strategy) IE没有Xpath引擎(Internet Explorer does not have a native XPath engine) CssSelector的劣势: 无法找到某元素的父亲元素(当然这种也很难遇到) ...
In some cases, this selector may not be unique (e.g.#wrapper > * > div > *). In this case, it will fall back to an entire chain of:nth-childselectors like: ":nth-child(2) > :nth-child(4) > :nth-child(1) > :nth-child(12)" ...
Filtering performs for nested selectors too. :not() pseudos content is ignoring since the result of matching is unpredictable. Example for the same usage data as above: :nth-child(2n of ul, ol) { color: red } :nth-child(3n + 1 of img) { color: yellow } :not(div, ol, ul) { ...