Here are some best practices for writing clean HTML:
Use Tables for Layout: While tables are outdated for web design, they are still standard practice for email layout due to their consistent rendering across email clients. Inline CSS: Use inline CSS for styling instead of external stylesheets, as many email clients strip out the head section of the HTML. Avoid JavaScript: Most email clients disable JavaScript for security reasons, so it's best to avoid using it. Minimal Use of Images: Use images sparingly and always include alt text for accessibility. Ensure images are optimized for faster loading times. Test Across Clients: Regularly test your emails across different email clients and devices to identify any rendering issues.