We have seen few HTML tags and their usage like heading 标题 tags<h1>, <h2>,paragraph 段落 tag<p>and other tags. We used them so far in their simplest form, but most of the HTML tags can also have attributes, which are extra bits of information. An attribute/əˈtrɪbjuːt/...
The following attributes are standard across all HTML elements. Therefore, you can use these attributes with the <h1> tag , as well as with all other HTML tags.accesskey autocapitalize class contenteditable data-* dir draggable hidden id inputmode is itemid itemprop itemref itemscope itemtype ...
<h1>Level 1 heading using the HTML h1 tag</h1> <p>Try changing the heading level to see the effect it has on the size of the text.</p> View Output AttributesHTML tags can contain one or more attributes. Attributes are added to a tag to provide the browser with more information ...
<h1>My First Heading</h1><p>My first paragraph.</p></body></html> The first two letters specify the language (en). If there is a dialect, use two more letters (US).The title AttributeHTML paragraphs are defined with the <p> tag....
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In HTML, a header tag looks like this: <h1></h1> The h1 tag is typically reserved for your title. So, in HTML, the title of your page would appear wrapped in h1 tags. <h1>This is My Page Title</h1> You may wonder why thetitle tagis not here. Your page title shows up in ...
bsObj.findAll(tagName, tagAttributes) .get_text() 会把这些超链接、段落和标签都清除掉, 只剩下一串不带标签的文字。 findAll(tag, attributes, recursive, text, limit, keywords) find(tag, attributes, recursive, text, keywords) .findAll({"h1","h2","h3","h4","h5","h6"}) ...
We have seen a few HTML tags and their usage, like heading tags <h1>, <h2>, paragraph tags <p>, and other tags. We used them so far in their simplest form, but most of the HTML tags can also have attributes, which are extra bits of information.What are HTML Attributes?
// Control the encoding of attributes. // Simple known values do not need encoding. writer.AddAttribute(HtmlTextWriterAttribute.Alt, "Encoding, \"Required\"", true); writer.AddAttribute("myattribute", "No "encoding " required", false); writer.RenderBeginTag(HtmlTextWriterTag.Img); writer.Ren...
举例:对于 h1 标签,效果是文字很大(不重要),语义是网页主要内容(很重要)。 优点: 代码结构清晰可读性强。 有利于 SEO(搜索引擎优化)。 方便设备解析,如屏幕阅读器、盲人阅读器等。 块级元素与行内元素 块级元素:独占一行(排版标签都是块级元素)。