CSS Selector Tester
Test CSS selectors against HTML content with real-time feedback
Quick Start
Load sample HTML or use common selectors to test
HTML Content
Enter your HTML content to test selectors against
CSS Selector
Enter CSS selector to test (auto-tests as you type)
CSS Selector Reference
Basic Selectors
div- Element selector#id- ID selector.class- Class selector*- Universal selector
Combinators
A B- DescendantA > B- ChildA + B- Adjacent siblingA ~ B- General sibling
Pseudo-classes
:first-child- First child:last-child- Last child:nth-child(n)- Nth child:not(selector)- Negation
Attributes
[attr]- Has attribute[attr="value"]- Exact match[attr*="value"]- Contains[attr^="value"]- Starts with
Use Cases
- • Web scraping
- • CSS debugging
- • Automated testing
- • DOM manipulation
Tips
- • Be specific but not too complex
- • Use classes for styling
- • Test in browser DevTools
- • Consider performance
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