head 标签本身并不携带任何信息,它主要是作为盛放其它语义类标签的容器使用。 head 标签规定了自身必须是 html 标签中的第一个标签,它的内容必须包含一个 title,并且最多只能包含一个 base。如果文档作为 iframe,或者有其他方式指定了文档标题时,可以允许不包含 title 标签。 1.2 title title 标签表示文档的标题。
Then, inside the <body> element there are two other elements: <h1> and <p>:<h1>My First Heading</h1><p>My first paragraph.</p> The <h1> element defines a heading.It has a start tag <h1> and an end tag </h1>:<h1>My First Heading</h1> ...
Some HTML elements do not have a closing tag; they're calledempty elements. Sometimes, they are also referred to assingletonorvoidelements. Empty elements are easy to use because you only have to include one tag in your web page and thebrowserwill know what to do. For example, to add a...
检索HTML 中由指定 HTML 标记表示的元素的集合。 C# 复制 public System.Windows.Forms.HtmlElementCollection GetElementsByTagName (string tagName); 参数 tagName String 希望检索的 HtmlElement 对象所属的标记名称。 返回 HtmlElementCollection 一个HtmlElementCollection ,包含其 HTML 标记名称等于 tagName的...
Many elements in the HTML Document Object Model have attributes, properties, and methods that are unique to those elements; such as the HREF attribute on the A element, or the Submit method on FORM. Use TagName when you have an element of a potentially arbitrary type, and need to perform ...
attributes that are common to all elements, leaving out those that only apply to certain types of elements;SRCis a predefined attribute for theIMGtag, for example, but not for theDIVtag. UseGetAttributeandSetAttributeto manipulate attributes not exposed on the managed Document Object Model (DOM)...
In addition to text, HTML files contain HTML tags and elements such as Dynamic HTML and scripts that can affect how information appears in the topic.For more information about the tag or element you are adding, see the HTML Tag Reference....
<p>q and cite Elements</p> <q>Imagination is more important than knowledge. <cite>Albert Einstein</cite></q> </div> 24.样本元素 samp元素用于表示从计算机程序输出的内联样本。浏览器默认使用等宽字体。 <!-- 24. samp Element --> <p>samp Elements</p> ...
Each HtmlTag instance represents a single HTML element, and optionally, a collection of inner elements. To create an element, pass the element name to the HtmlTag constructor: new HtmlTag("span") Calling ToString() on this instance will produce: ...
Definition and UsageThe <table> tag defines an HTML table.An HTML table consists of one <table> element and one or more <tr>, <th>, and <td> elements.The <tr> element defines a table row, the <th> element defines a table header, and the <td> element defines a table cell....