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Course Introduction：Efficient H5 production relies on a deep understanding of tools, specifications, and performance. Specifically, it includes: proficiency in basic technologies such as HTML5, CSS3, and JavaScript. Make full use of front-end frameworks (such as Vue, React, Angular) to improve development efficiency. Build an efficient page architecture, adopt a modular design, and split the page into independent modules. Optimize code quality, use CSS preprocessor, write concise JavaScript code, and avoid abuse of global variables. Focus on performance optimization, including image compression, code compression and reducing the number of HTTP requests.

2025-04-06 comment 0  828

Course Introduction：The performance of H5 pages involves all aspects, including: HTML structure, CSS style, JavaScript interaction, as well as performance optimization and best practices. In H5 code, HTML is responsible for structure, CSS is responsible for style, and JavaScript is responsible for interaction. Optimization technologies include image compression, code optimization, caching strategies, etc. to ensure user experience. In short, the H5 effect is a systematic project that requires comprehensive consideration of design, code, performance and other aspects.

2025-04-06 comment 0  560

Course Introduction：The main reasons for poor picture quality of your videos on Twitter (now X) include: ① Twitter will severely compress the video to save bandwidth, resulting in decreased clarity, color and detail, especially high-code or high-resolution videos; ② Poor quality of the original video or improper export settings, such as low-light shooting, low resolution or excessive compression; ③ The network is unstable during uploading, causing the platform to process low-quality versions; ④ Improper video ratio leads to cropping or stretching, affecting the display effect; ⑤ Repeated upload of compressed videos (such as from platforms such as Douyin and Instagram), causing multi-generation compression losses. The solution is: use 1080p resolution, 8–12Mbps bitrate, H.264 encoding, 30fps or 60fps MP4 format video, priority from the original high

2025-07-25 comment 0  782

Course Introduction：HTML5 tags are used to provide metadata of web pages, including setting character encoding, page description, keywords, author information, controlling mobile viewports, social sharing optimization and website theme colors. 1. Set character encoding (such as UTF-8) to avoid garbled code; 2. Provide page description and keywords to improve SEO; 3. Use viewport to control the mobile display effect; 4. Optimize social sharing preview through OpenGraph or TwitterCard tags; 5. Set theme-color to enhance brand recognition in the browser.

2025-07-18 comment 0  867

Course Introduction：The key to making a responsive website lies in the reasonable cooperation between HTML5 and CSS3, and the core is to make web pages display well on different devices. 1. Use HTML5 semantic tags to build clear structures, such as, , etc., to make the code easier to read and facilitate search engine crawling; 2. Use CSS3 media query to achieve multi-device adaptation, and apply different rules by detecting screen width, such as setting breakpoints such as mobile phones and tablets; 3. Use elastic layout (Flexbox or Grid) to deal with alignment and arrangement issues, and ensure that the navigation bar and other content automatically adapt to the screen; 4. Set image adaptation, use max-width:100% and srcset attributes to ensure that the image does not destroy the layout and improve the loading effect. Mastering these four key points can achieve compatibility with multiple settings

2025-07-13 comment 0  507

Course Elementary  13825

Course Introduction：Scala Tutorial Scala is a multi-paradigm programming language, designed to integrate various features of object-oriented programming and functional programming.

Course Elementary  82364

Course Introduction："CSS Online Manual" is the official CSS online reference manual. This CSS online development manual contains various CSS properties, definitions, usage methods, example operations, etc. It is an indispensable online query manual for WEB programming learners and developers! CSS: Cascading Style Sheets (English full name: Cascading Style Sheets) is an application used to express HTML (Standard Universal Markup Language).

Course Elementary  13182

Course Introduction：SVG is a markup language for vector graphics in HTML5. It maintains powerful drawing capabilities and at the same time has a very high-end interface to operate graphics by directly operating Dom nodes. This "SVG Tutorial" is intended to allow students to master the SVG language and some of its corresponding APIs, combined with the knowledge of 2D drawing, so that students can render and control complex graphics on the page.

Course Elementary  24630

Course Introduction：In the "AngularJS Chinese Reference Manual", AngularJS extends HTML with new attributes and expressions. AngularJS can build a single page application (SPAs: Single Page Applications). AngularJS is very easy to learn.

Course Elementary  27490

Course Introduction：Go is a new language, a concurrent, garbage-collected, fast-compiled language. It can compile a large Go program in a few seconds on a single computer. Go provides a model for software construction that makes dependency analysis easier and avoids most C-style include files and library headers. Go is a statically typed language, and its type system has no hierarchy. Therefore users do not need to spend time defining relationships between types, which feels more lightweight than typical object-oriented languages. Go is a completely garbage-collected language and provides basic support for concurrent execution and communication. By its design, Go is intended to provide a method for constructing system software on multi-core machines.