Underscores is a starter theme for content management systems, intended for developers who want to build custom themes from scratch. It provides a clean, minimal foundation that avoids unnecessary bloat, making it ideal for those who prefer to code their own designs without starting from zero.

• Lean, modern templates: Offers well-commented HTML5 templates that are minimal and easy to modify, reducing clutter and focusing on essential structure.
• Smart CSS organization: Includes starter CSS in style.css that is organized to help you quickly implement your design ideas, with minimal pre-styled elements to override.
• Custom template tags: Provides template tags in inc/template-tags.php to keep code clean and avoid duplication across template files.
• Responsive navigation: Features a JavaScript file at js/navigation.js that enables toggled dropdown menus for small screens, ready for custom styling.
• Sample layouts and tools: Comes with two sample CSS layouts for sidebars, a 404 template, and optional custom header implementation to jumpstart development.