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Course Introduction：Understand Bootstrap's grid system and flexibly use column classes to control the layout of list items under different screen sizes. Use col-md-4, col-sm-6 and other classes to set the number of columns of the list item under a specific screen size to achieve responsive effects. For situations where the list items have a lot of content or the layout is complex, use CSS styles or media queries for more fine control to ensure that the page is displayed clearly. Make full use of Bootstrap's responsive tool classes, such as d-none d-md-block, to control the display and hiding of elements under different screen sizes, and improve layout flexibility.

2025-04-07 comment 0  1072

Course Introduction：H5 page production refers to the creation of cross-platform compatible web pages using technologies such as HTML5, CSS3 and JavaScript. Its core lies in the browser's parsing code, rendering structure, style and interactive functions. Common technologies include animation effects, responsive design, and data interaction. To avoid errors, developers should be debugged; performance optimization and best practices include image format optimization, request reduction and code specifications, etc. to improve loading speed and code quality.

2025-04-06 comment 0  1461

Course Introduction：The Magento 2 e-commerce platform has been criticized for its speed problems, with slow product catalog pages and slow-responsive checkout processes being common problems. This article will share seven practical tips to help you improve the running speed of the Magento 2 online store. 1. Use Varnish as cache application Varnish is an HTTP proxy server that caches content and installs it in front of a web server to significantly improve website performance. Magento 2 has built-in support for Varnish. The enable method is as follows: Go to Admin Panel > Store > Configuration > Advanced > System > Full Page Cache and set "Cache Application" to Varni

2025-02-08 comment 0  1205

Course Introduction：iframe is an inline framework used in HTML to embed external content, suitable for embedding third-party content such as maps, videos, and advertisements; 1. Pay attention to security, style adaptation and loading performance when using it; 2. The basic writing method is to set functions such as size and full-screen playback; 3. Optimization includes removing borders, realizing responsive layout, and using lazy loading to improve performance; 4. In terms of security, sandbox and allow attributes should be used to restrict iframe behavior to prevent potential attacks; mastering these key points can ensure that iframes are stable and safely integrated into the web page.

2025-07-06 comment 0  976

Course Introduction：UTF-8 character encoding is recommended in HTML5 documents because it supports almost all language characters, has good compatibility and is a standard practice in modern web development. Its advantages include: 1. Supports all international characters, such as Chinese, Japanese, Arabic and special symbols; 2. It is a superset of ASCII, and there is no additional burden on English web pages; 3. Full browser support to avoid garbled problems. The declaration method is to add tags to HTML files, or set the default character set via HTTP headers. Notes include: 1. Make sure the HTML file is saved in UTF-8 format; 2. Check whether the Content-Type sent by the server contains charset=UTF-8; 3. When migrating old projects, you need to unify the database, front-end page and connection.

2025-07-07 comment 0  579

Course Elementary  13770

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  82280

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  13144

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  24589

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  27446

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.