Course Introduction：To realize the parallax scrolling effect in HTML5, you need to combine HTML, CSS and JavaScript. The core is to allow different page elements to scroll at different speeds. 1. The HTML structure should contain multiple independent layers, such as using different class names to represent background, intermediate content and foreground. 2. CSS uses position:absolute and translateZ to create a 3D depth sense. The smaller the value of the background layer, the slower the scrolling. 3. JavaScript can listen to scroll events, dynamically adjust the translateY value, and control the scroll speed of each layer by multiplying by a coefficient. 4. Pay attention to performance optimization and use requestAnimationFrame
2025-07-15 comment 0 759
Course Introduction：The easiest way to create a parallax effect is to use the background-attachment:fixed attribute of CSS, which creates a depth illusion by fixing the background image and scrolling the content, and can achieve the basic effect without JavaScript; if you need to control the movement speed more carefully or adapt to mobile devices, you can combine JavaScript to listen to scroll events and dynamically adjust the background position, such as setting the Y-axis position of the background to half of the scroll offset to achieve half-speed movement; in order to improve the experience, you should optimize the background image size, provide a downgrade solution on the mobile side, adopt a semantic HTML structure, and consider using prefers-reduced-motion media query to meet different user needs.
2025-08-24 comment 0 917
Course Introduction：Use CSSGrid to easily create responsive picture galleries without JavaScript; 1. Use .gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px;padding:10px;} to achieve adaptive mesh layout; 2. Set width:100% for the picture; height:auto;object-fit:cover;border-radius:8px; to ensure responsiveness and visual consistency; 3. Optional add:hover zoom effect to improve the interaction body
2025-08-11 comment 0 343
Course Introduction：Use HTML5 elements to build a video grid in the container, and each video is wrapped with a div; 2. Use CSSGrid to set display:grid and grid-template-columns:repeat(auto-fit,minmax(300px,1fr)) to achieve responsive layout; 3. Maintain a 16:9 aspect ratio through object-fit or padding-bottom:56.25%; 4. Avoid automatic playback, add controls and posters to ensure mobile availability; and finally realize a cross-device responsive video grid without JavaScript through modern CSS.
2025-08-11 comment 0 678
Course Introduction：Using Flexbox, you can achieve equal-wide split-screen layout by setting container display:flex and child element flex:1; 2. Using CSSGrid can define two columns through grid-template-columns:1fr1fr to achieve the same effect; both of them fill the viewport with height:100vh, and a mobile stacked responsive layout can be achieved through media query, ultimately achieving a simple and flexible split-screen design.
2025-08-05 comment 0 306
Course Elementary 13927
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 82482
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 13265
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 24731
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 27566
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.
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