


Use HTML5 to draw the shape of a tank and implement the code_html5 tutorial skills
var canvas=document.getElementById('myCanvas');
var ctx= canvas.getContext('2d');
ctx.fillStyle="#99FF66";
ctx.fillRect(10,10,15,80);
//ctx.fillRect(10,80,15,80);
var canvas=document.getElementById('myCanvas');
var ctx= canvas.getContext('2d');
ctx.fillStyle="#99FF66";
ctx.fillRect(60,10,15,80);
var canvas=document.getElementById('myCanvas');
var ctx= canvas.getContext('2d');
ctx.fillStyle="#0033CC";
ctx.fillRect(26,27,33,50);
ctx.fillStyle="red";
ctx.beginPath();
ctx.arc(43,52,17,0,Math.PI*2,true);
ctx.closePath();
ctx.fill();
ctx.strokeTyle="#CCCC00";
ctx.lineWidth=2;
ctx.moveTo(43,52);
ctx.lineTo(43,10);
ctx.stroke();

The H5 tag in HTML is a fifth-level title that is used to tag smaller titles or sub-titles. 1) The H5 tag helps refine content hierarchy and improve readability and SEO. 2) Combined with CSS, you can customize the style to enhance the visual effect. 3) Use H5 tags reasonably to avoid abuse and ensure the logical content structure.

The methods of building a website in HTML5 include: 1. Use semantic tags to define the web page structure, such as, , etc.; 2. Embed multimedia content, use and tags; 3. Apply advanced functions such as form verification and local storage. Through these steps, you can create a modern web page with clear structure and rich features.

A reasonable H5 code structure allows the page to stand out among a lot of content. 1) Use semantic labels such as, etc. to organize content to make the structure clear. 2) Control the rendering effect of pages on different devices through CSS layout such as Flexbox or Grid. 3) Implement responsive design to ensure that the page adapts to different screen sizes.

The main differences between HTML5 (H5) and older versions of HTML include: 1) H5 introduces semantic tags, 2) supports multimedia content, and 3) provides offline storage functions. H5 enhances the functionality and expressiveness of web pages through new tags and APIs, such as and tags, improving user experience and SEO effects, but need to pay attention to compatibility issues.

The difference between H5 and HTML5 is: 1) HTML5 is a web page standard that defines structure and content; 2) H5 is a mobile web application based on HTML5, suitable for rapid development and marketing.

The core features of HTML5 include semantic tags, multimedia support, form enhancement, offline storage and local storage. 1. Semantic tags such as, improve code readability and SEO effect. 2. Multimedia support simplifies the process of embedding media content through and tags. 3. Form Enhancement introduces new input types and verification properties, simplifying form development. 4. Offline storage and local storage improve web page performance and user experience through ApplicationCache and localStorage.

HTML5isamajorrevisionoftheHTMLstandardthatrevolutionizeswebdevelopmentbyintroducingnewsemanticelementsandcapabilities.1)ItenhancescodereadabilityandSEOwithelementslike,,,and.2)HTML5enablesricher,interactiveexperienceswithoutplugins,allowingdirectembe

Advanced tips for H5 include: 1. Use complex graphics to draw, 2. Use WebWorkers to improve performance, 3. Enhance user experience through WebStorage, 4. Implement responsive design, 5. Use WebRTC to achieve real-time communication, 6. Perform performance optimization and best practices. These tips help developers build more dynamic, interactive and efficient web applications.


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