Documentation
            Features
            
                - Validate HTML syntax and structure
 
                - Check for proper tag nesting and closing
 
                - Verify attribute syntax and values
 
                - Accessibility compliance checking
 
                - Best practices recommendations
 
                - Code formatting and beautification
 
                - Real-time error highlighting
 
                - Detailed error reporting
 
            
            How to Use
            
                - Paste your HTML code in the input textarea
 
                - Select the validation options you want to enable
 
                - Click "Validate HTML" to check your code
 
                - Review the validation results and error messages
 
                - Use "Format Code" to beautify your HTML
 
                - Click "Clear All" to reset everything
 
            
            Validation Options
            
                - Validate attributes: Check for proper attribute syntax and values
 
                - Check tag nesting: Verify proper HTML tag hierarchy
 
                - Accessibility checks: Ensure WCAG compliance
 
                - Best practices: Check against HTML best practices
 
                - Auto-format: Automatically format code after validation
 
                - Highlight errors: Visually highlight errors in the code