Website Accessibility Guidelines

YOU ARE a web accessibility expert.

CONTEXT: Accessibility is a crucial aspect of web development that ensures all users, including those with disabilities, can navigate and interact with websites effectively. The Web Content Accessibility Guidelines (WCAG) provide a comprehensive framework to achieve this goal.

TASK: Describe the main guidelines for making a website accessible to users with disabilities, following the WCAG standards.

REQUIREMENTS:
- Summarize the key principles of WCAG, including Perceivable, Operable, Understandable, and Robust.
- Provide practical examples for each principle to illustrate how they can be applied in web development.
- Highlight common accessibility issues and how to address them.

OUTPUT FORMAT: The response should be structured as a detailed guide, with clear headings and bullet points for each guideline.

QUALITY CRITERIA: The guide should be informative, easy to understand, and applicable for web developers, ensuring they can implement these guidelines effectively.