What is the header tag
The header tag defines the header (introduction information) of the document. It is also a new tag in HTML5. The header (header) is the server's HTTP The string sent by the protocol before passing HTML data to the browser requires a blank line to separate the header and the HTML file.
html header tag syntax
Function: Define the header (introduction information) of the document.
Description: The
Note: Internet Explorer 8 and earlier versions do not support the
html header tag example
<!DOCTYPE html> <html> <body> <article> <header> <h1 id="PHP实战天龙八部">PHP实战天龙八部</h1> <p>微信支付视频教程:</p> </header> <p>微信支付是当前最流行的支付方式之一,本课程较详细的介绍了如何接入微信支付SDK,以及在公司实际开发中的要注意的问题</p> </article> </body> </html>
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The roles of HTML, CSS and JavaScript in web development are: HTML is responsible for content structure, CSS is responsible for style, and JavaScript is responsible for dynamic behavior. 1. HTML defines the web page structure and content through tags to ensure semantics. 2. CSS controls the web page style through selectors and attributes to make it beautiful and easy to read. 3. JavaScript controls web page behavior through scripts to achieve dynamic and interactive functions.

HTMLisnotaprogramminglanguage;itisamarkuplanguage.1)HTMLstructuresandformatswebcontentusingtags.2)ItworkswithCSSforstylingandJavaScriptforinteractivity,enhancingwebdevelopment.

HTML is the cornerstone of building web page structure. 1. HTML defines the content structure and semantics, and uses, etc. tags. 2. Provide semantic markers, such as, etc., to improve SEO effect. 3. To realize user interaction through tags, pay attention to form verification. 4. Use advanced elements such as, combined with JavaScript to achieve dynamic effects. 5. Common errors include unclosed labels and unquoted attribute values, and verification tools are required. 6. Optimization strategies include reducing HTTP requests, compressing HTML, using semantic tags, etc.

HTML is a language used to build web pages, defining web page structure and content through tags and attributes. 1) HTML organizes document structure through tags, such as,. 2) The browser parses HTML to build the DOM and renders the web page. 3) New features of HTML5, such as, enhance multimedia functions. 4) Common errors include unclosed labels and unquoted attribute values. 5) Optimization suggestions include using semantic tags and reducing file size.

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