How to use web standards to optimize the accessibility and maintainability of web pages-CSS Tutorial-php.cn

Home

Web Front-end

CSS Tutorial

How to use web standards to optimize the accessibility and maintainability of web pages

王林

Jan 13, 2024 am 10:22 AM

Maintainabilityaccessibilityweb standards

How to use web standards to optimize the accessibility and maintainability of web pages

How to apply Web standards to improve the accessibility and maintainability of web pages

With the rapid development of the Internet, web pages have become indispensable in our daily lives part. As more and more people begin to use various devices to access web pages, it becomes particularly important to ensure the accessibility and maintainability of web pages. This article will introduce how to apply web standards to improve the accessibility and maintainability of web pages, and give specific code examples.

1. Improvement of accessibility

Use semantic HTML structure: Use HTML tags rationally to make the structure of the page clearer and improve the accessibility of assistive technologies such as screen readers. support. For example, use
to
tags to represent heading levels, use

tags to represent paragraphs, etc.

Sample code:

<h1 id="这是一个标题">这是一个标题</h1>
<p>这是一个段落。</p>

Provide alternative text for the image: Use the alt attribute to provide a descriptive text for the image, which is useful for users who cannot display images and who use screens Very important for readers users.

Sample code:

<img src="/static/imghwm/default1.png"  data-src="image.jpg"  class="lazy" alt="这是一张图片的描述性文本">

Use appropriate color contrast: Make sure there is enough contrast between text and background color so that people can easily read and understand the page Content.

Sample code:

body {
  color: #000000;
  background-color: #ffffff;
}

Keyboard accessibility: Ensure that pages can be navigated and operated with a keyboard to meet the needs of users who cannot use a mouse.

Sample code:

a:focus, button:focus, input:focus {
  outline: none;
}

2. Improvement of maintainability

Separate HTML, CSS and JavaScript: Separate HTML, CSS and JavaScript code Open, so that they do not interfere with each other and are easier to maintain and update.

Sample code:

<!DOCTYPE html>
<html>
<head>
  <link rel="stylesheet" href="styles.css">
</head>
<body>
  <h1 id="这是一个标题">这是一个标题</h1>
  <p>这是一个段落。</p>

  <script src="script.js"></script>
</body>
</html>

Use external CSS and JavaScript files: Place CSS and JavaScript code in external files and introduce them through links for easy reuse and manage.

Sample code:

<link rel="stylesheet" href="styles.css">
<script src="script.js"></script>

Use naming conventions: Use meaningful names for HTML elements, CSS classes, JavaScript variables, etc., and follow naming conventions to improve the quality of your code. Readability and maintainability.

Sample code:

<h1 id="这是一个标题">这是一个标题</h1>

.title {
  font-size: 24px;
  color: #000000;
}

Improve code reusability: by using CSS preprocessors (such as SCSS) to write reusable CSS code blocks, by using JavaScript Organize and manage code in a modular way to improve code maintainability and reusability.

Sample code:

// _utilities.scss
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap');

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.button {
  padding: 10px 20px;
  font-size: 16px;
}

// utils.js
export function formatDate(date) {
  return new Date(date).toLocaleDateString('en-US');
}

By applying the above web standards, we can improve the accessibility and maintainability of web pages. Both from the user's perspective and from the developer's perspective, it can provide better experience and efficiency. I hope that the code examples provided in this article can bring you some inspiration to apply Web standards to actual development.

The above is the detailed content of How to use web standards to optimize the accessibility and maintainability of web pages. 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

Where should 'Subscribe to Podcast' link to?Apr 16, 2025 pm 12:04 PM

For a while, iTunes was the big dog in podcasting, so if you linked "Subscribe to Podcast" to like:

Browser Engine DiversityApr 16, 2025 pm 12:02 PM

We lost Opera when they went Chrome in 2013. Same deal with Edge when it also went Chrome earlier this year. Mike Taylor called these changes a "Decreasingly

UX Considerations for Web SharingApr 16, 2025 am 11:59 AM

From trashy clickbait sites to the most august of publications, share buttons have long been ubiquitous across the web. And yet it is arguable that these

Weekly Platform News: Apple Deploys Web Components, Progressive HTML Rendering, Self-Hosting Critical ResourcesApr 16, 2025 am 11:55 AM

In this week's roundup, Apple gets into web components, how Instagram is insta-loading scripts, and some food for thought for self-hosting critical resources.

Git Pathspecs and How to Use ThemApr 16, 2025 am 11:53 AM

When I was looking through the documentation of git commands, I noticed that many of them had an option for . I initially thought that this was just a

A Color Picker for Product ImagesApr 16, 2025 am 11:49 AM

Sounds kind of like a hard problem doesn't it? We often don't have product shots in thousands of colors, such that we can flip out the with . Nor do we

A Dark Mode Toggle with React and ThemeProviderApr 16, 2025 am 11:46 AM

I like when websites have a dark mode option. Dark mode makes web pages easier for me to read and helps my eyes feel more relaxed. Many websites, including

Some Hands-On with the HTML Dialog ElementApr 16, 2025 am 11:33 AM

This is me looking at the HTML element for the first time. I've been aware of it for a while, but haven't taken it for a spin yet. It has some pretty cool and

See all articles

Hot AI Tools

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress images for free

Clothoff.io

AI clothes remover

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)

4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

R.E.P.O. Best Graphic Settings

4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Assassin's Creed Shadows: Seashell Riddle Solution

2 weeks agoByDDD

R.E.P.O. How to Fix Audio if You Can't Hear Anyone

1 months agoBy尊渡假赌尊渡假赌尊渡假赌

R.E.P.O. Chat Commands and How to Use Them

1 months agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Atom editor mac version download

The most popular open source editor

MinGW - Minimalist GNU for Windows

This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.