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Course Introduction：To create a CSS-only animation switch, you need to build the basic HTML structure first, and use hidden checkbox and label to simulate the switch; 2. Set container size through CSS, hide input boxes, design slider tracks and circular sliders, and add transition effects; 3. Use the checked pseudo-class to change the background color and slider position when selected, and use translateX (26px) to achieve smooth movement; 4. Optionally add box-shadow to improve visual contrast; finally realize a toggle switch that does not require JavaScript, is accessible, responsive and smooth animation, suitable for various switching scenarios.

2025-08-04 comment 0  761

Course Introduction：The core of creating a "Readmore" link is to hide part of the text through CSS and switch classes with JavaScript to display the full text; 2. Use HTML structure to include preview text and hidden text, and control display through .active class; 3. Set .hidden-text{display:none} and cooperate with .read-more-container.active.hidden-text{display:inline} to achieve visible and hidden; 4. JavaScript adds click events to buttons, switch active class and change the button text to "Readless" or "Readmore"; 5. Optional pure

2025-07-29 comment 0  699

Course Introduction：There are two ways to create a MongoDB user: Use the mongoDB shell: Use the use command to switch to the admin database. Use the db.createUser command to create a user, specifying the user name, password, and role. Using MongoDB Compass: Expand the "Security" section and click the "Users" tab. Click the "Add User" button, enter the user name, password and select a role.

2025-04-12 comment 0  735

Course Introduction：The core of using CSS variables to achieve topic switching is to define the basic variables and organize the topic structure, and dynamically switch through class names or attributes. The steps are as follows: 1. Define basic variables such as colors, fonts, etc. in root; 2. Create classes that cover variables for different themes (such as dark and light colors); 3. Call variables using var() in CSS rules; 4. Switch class names or attributes through JavaScript to achieve theme changes; 5. Extend variables to font size, rounded corners, shadows and other style attributes. This clear structure and easy maintenance lies in reasonable naming and scope control.

2025-07-15 comment 0  686

Course Introduction：How to add a dark mode toggle button to your website? First, use HTML to build the structure, then use CSS to define two theme styles, and finally implement the switching function through JavaScript. 1. Create a basic layout: Create an HTML file containing toggle buttons and content, and link CSS and JS files. 2. Define the theme in CSS: Use variables to set the color scheme of default and dark modes and apply it to page elements. 3. Add JavaScript switching logic: Switch the dark mode class on the body by clicking events, and save user preferences with localStorage.

2025-07-16 comment 0  262

Course Elementary  13824

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  82359

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  13178

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  24628

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  27486

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.