AI代码解释 html,body,div{margin:0;padding:0}.box{margin:20px auto;display:table;width:200px;height:200px;background:#ddf;}.content{display:table-cell;vertical-align:middle;text-align:center;}This is test a b c d e f g h i j k a b c d e f g h i j k 多行文本能居中了,但...
5 ID Selector,比如:#item。 6 伪类 Selector (Pseudo-Class Selector),比如::hover。 和伪类 Selector 类似的,还有伪元素 Selector (Pseudo-Element Selector),比如:::first-letter。 解析出来的简单 Selector 由类CSSParserSelector和CSSSelector表示,其中CSSParserSelector内部通过m_selector属性持有CSSSelect...
如何将元素均匀地分布在多条线上,例如: elements inside: <div style="displayinline-block;而不是在下一行中只有一个元素Element 3 Element 4 E 浏览6提问于2010-05-07得票数2 回答已采纳 4回答 均匀分布列表项,填充相等(最好不使用JavaScript)
Developer.mozilla.org: The margin of the[absolutely positioned] element is then positioned inside these offsets. 5、由于内容块被绝对定位,脱离了正常的内容流,浏览器会给margin-top,margin-bottom相同的值,使元素块在先前定义的边界内居中。 W3.org: If none of the three [top, bottom,height] are 'au...
Learn how to set padding inside an element using CSS with this detailed guide, including examples and best practices.
} /* Good example */ /* Wrapping element for .modal-title and .modal-close */ .modal-header { ... } class 命名 class 名称中只能出现小写字符和破折号(dashe)(不是下划线,也不是驼峰命名法)。破折号应当用于相关 class 的命名(类似于命名空间)(例如,.btn 和.btn-danger)。 避免过度任意的简写。
Element 'Content' is not a known element. This can occur if there is a compilation error in the Web site, or the web.config file is missing. Element 'html' cannot be nested within element 'div' - error Element [a user control] is not a known element. Element Form must not be neste...
As you can see we use the~=attribute selector. Since this css-element-queries polyfill adds new element attributes on the DOM element () depending on your actual CSS and element's dimension, you should always use this attribute selector (especially if you have several element query rules on...
Get the current coordinates of the first element in the set of matched elements, relative to the offset parent. Also in:Attributes|Manipulation>Class Attribute .removeClass() Remove a single class, multiple classes, or all classes from each element in the set of matched elements. ...
To get them on the same line, you need to apply some styling to the p elements so they behave more like inline elements. To do that, start by adding a class attribute with the value item to the first article element under the Coffee heading. ...