HTML, CSS and jQuery: Techniques for achieving image folding and expanding effects-JS Tutorial-php.cn

Home

Web Front-end

JS Tutorial

HTML, CSS and jQuery: Techniques for achieving image folding and expanding effects

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

Oct 24, 2023 am 11:05 AM

picturefoldspecial effects

HTML, CSS and jQuery: Techniques for achieving image folding and expanding effects

HTML, CSS and jQuery: Tips for implementing image folding and expansion effects

Introduction
In web design and development, we often need to implement some dynamic special effects. Increase page appeal and interactivity. Among them, the image folding and unfolding effect is a common but interesting technique. Through this special effect, we can make the image fold or expand under the user's operation to show more content or details. This article will introduce how to use HTML, CSS and jQuery to achieve this effect, with specific code examples.

Implementation Ideas
To achieve the special effect of image folding and expansion, we need to build the page structure through HTML, set the style through CSS, and use jQuery to achieve interactive effects. The following is a simple implementation idea:

Create an HTML page structure, including a container div containing images.
Set CSS styles, including container size, background color, font size, etc.
Use jQuery to add an event listener, and when the user clicks on the container, switch the class name of the container.
Set the CSS style according to the class name of the container to achieve the folding or expanding effect of the image.

Code Example
The following is a simple code example that demonstrates how to use HTML, CSS and jQuery to achieve image folding and expansion effects.

HTML code:

<!DOCTYPE html>
<html>
<head>
  <link rel="stylesheet" type="text/css" href="style.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
  <script src="script.js"></script>
</head>
<body>
  <div id="image-container" class="collapsed">
    <img src="/static/imghwm/default1.png"  data-src="image.jpg"  class="lazy" alt="折叠展开图片">
    <div class="overlay">
      <h1 id="这是折叠展开图片的标题">这是折叠展开图片的标题</h1>
      <p>这是折叠展开图片的描述内容。</p>
    </div>
  </div>
</body>
</html>

CSS code (style.css):

#image-container {
  width: 300px;
  height: 200px;
  background-color: #f2f2f2;
  padding: 20px;
  position: relative;
  cursor: pointer;
}
#image-container.collapsed {
  height: 80px;
}
#image-container img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}
.overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px;
  background-color: rgba(0, 0, 0, 0.5);
  color: #fff;
}
.overlay h1 {
  font-size: 24px;
  margin: 0;
}
.overlay p {
  font-size: 14px;
  margin: 10px 0 0;
}

jQuery code (script.js):

$(document).ready(function() {
  $('#image-container').on('click', function() {
    $(this).toggleClass('collapsed');
  });
});

This code first The .ready() method of jQuery is used to ensure that subsequent code is executed after the document is loaded. Then, the element with the id "image-container" is selected through the selector and a click event listener is added to it. When the user clicks on the element, the "collapsed" class state is toggled.

In CSS, we set the default width, height, and background color for the container, and position the overlay superimposed on top of the image to the bottom through absolute positioning. Then, achieve the folding effect by setting the height of the .collapsed class. The overlay's style sets the background color, font size, etc.

Summary
By using HTML, CSS and jQuery, we can easily achieve image folding and expansion effects. The above sample code shows a simple implementation idea and specific code examples. You can modify and extend it according to your needs and design style. I hope this article can help you implement more interesting dynamic effects in web design and development!

The above is the detailed content of HTML, CSS and jQuery: Techniques for achieving image folding and expanding effects. For more information, please follow other related articles on the PHP Chinese website!

Statement

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Python vs. JavaScript: Community, Libraries, and ResourcesApr 15, 2025 am 12:16 AM

Python and JavaScript have their own advantages and disadvantages in terms of community, libraries and resources. 1) The Python community is friendly and suitable for beginners, but the front-end development resources are not as rich as JavaScript. 2) Python is powerful in data science and machine learning libraries, while JavaScript is better in front-end development libraries and frameworks. 3) Both have rich learning resources, but Python is suitable for starting with official documents, while JavaScript is better with MDNWebDocs. The choice should be based on project needs and personal interests.

From C/C to JavaScript: How It All WorksApr 14, 2025 am 12:05 AM

The shift from C/C to JavaScript requires adapting to dynamic typing, garbage collection and asynchronous programming. 1) C/C is a statically typed language that requires manual memory management, while JavaScript is dynamically typed and garbage collection is automatically processed. 2) C/C needs to be compiled into machine code, while JavaScript is an interpreted language. 3) JavaScript introduces concepts such as closures, prototype chains and Promise, which enhances flexibility and asynchronous programming capabilities.

JavaScript Engines: Comparing ImplementationsApr 13, 2025 am 12:05 AM

Different JavaScript engines have different effects when parsing and executing JavaScript code, because the implementation principles and optimization strategies of each engine differ. 1. Lexical analysis: convert source code into lexical unit. 2. Grammar analysis: Generate an abstract syntax tree. 3. Optimization and compilation: Generate machine code through the JIT compiler. 4. Execute: Run the machine code. V8 engine optimizes through instant compilation and hidden class, SpiderMonkey uses a type inference system, resulting in different performance performance on the same code.

Beyond the Browser: JavaScript in the Real WorldApr 12, 2025 am 12:06 AM

JavaScript's applications in the real world include server-side programming, mobile application development and Internet of Things control: 1. Server-side programming is realized through Node.js, suitable for high concurrent request processing. 2. Mobile application development is carried out through ReactNative and supports cross-platform deployment. 3. Used for IoT device control through Johnny-Five library, suitable for hardware interaction.

Building a Multi-Tenant SaaS Application with Next.js (Backend Integration)Apr 11, 2025 am 08:23 AM

I built a functional multi-tenant SaaS application (an EdTech app) with your everyday tech tool and you can do the same. First, what’s a multi-tenant SaaS application? Multi-tenant SaaS applications let you serve multiple customers from a sing

How to Build a Multi-Tenant SaaS Application with Next.js (Frontend Integration)Apr 11, 2025 am 08:22 AM

This article demonstrates frontend integration with a backend secured by Permit, building a functional EdTech SaaS application using Next.js. The frontend fetches user permissions to control UI visibility and ensures API requests adhere to role-base

JavaScript: Exploring the Versatility of a Web LanguageApr 11, 2025 am 12:01 AM

JavaScript is the core language of modern web development and is widely used for its diversity and flexibility. 1) Front-end development: build dynamic web pages and single-page applications through DOM operations and modern frameworks (such as React, Vue.js, Angular). 2) Server-side development: Node.js uses a non-blocking I/O model to handle high concurrency and real-time applications. 3) Mobile and desktop application development: cross-platform development is realized through ReactNative and Electron to improve development efficiency.

The Evolution of JavaScript: Current Trends and Future ProspectsApr 10, 2025 am 09:33 AM

The latest trends in JavaScript include the rise of TypeScript, the popularity of modern frameworks and libraries, and the application of WebAssembly. Future prospects cover more powerful type systems, the development of server-side JavaScript, the expansion of artificial intelligence and machine learning, and the potential of IoT and edge computing.

See all articles