Custom code can enhance your Squarespace site's style and functionality beyond built-in features. While Squarespace is designed to work without coding knowledge, custom code offers additional customization options.

Before adding custom code:

• Ensure you have coding knowledge or hire a Squarespace Expert
• Be aware that code changes may conflict with site functionality
• Consider that custom code support is limited

Available Code Types:

• HTML: Adds content structure and elements
• CSS: Controls site styling (128,000 character limit)
• JavaScript: Adds interactive features
• Markdown: Formats text content

Code Implementation Methods:

1. Code Blocks: Best for custom code and advanced modifications
2. Embed Blocks: Ideal for third-party content using oEmbed standard

CSS Customization Guidelines: Recommended for:

• Fonts
• Colors
• Backgrounds

Avoid using CSS for:

• Margins
• Floats
• Element sizing
• Positioning

Troubleshooting Tips: If code doesn't appear:

• Refresh your browser
• Test in incognito mode
• Check if Ajax loading is enabled
• Verify Index Page placement

Note: Squarespace doesn't support:

• Server-side code (PHP, Ruby, SQL)
• CORS requests

Recommended Learning Resources:

• W3Schools
• CodeCademy
• Mozilla Developer Network
• Stack Overflow
• Shay Howe
• SitePoint
• Treehouse

For advanced users of version 7.0, the Squarespace Developer Platform provides access to template code for deeper customization.

Remember to test all custom code thoroughly before implementation and keep backups of your original settings.

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