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CSS 选择器测试器

免费在线 CSS 选择器测试工具。

Try: p,.intro,li:nth-child(2)
Test results will appear here...
Common CSS Selectors Reference
Basic Selectors
element - Element by tag
.class - By class name
#id - By ID
[attr] - By attribute
Combinators
A B - Descendant
A > B - Child
A + B - Adjacent sibling
A ~ B - General sibling
Pseudo-classes
:first-child
:last-child
:nth-child(n)
:not(selector)
Attribute Selectors
[attr=value] - Exact
[attr*=value] - Contains
[attr^=value] - Starts with
[attr$=value] - Ends with

CSS 选择器测试器

针对 HTML 标记测试 CSS 选择器。

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How to Use CSS Selector Tester

  1. Enter your input or configuration in the CSS Selector Tester
  2. Set up test parameters and options as needed
  3. Click Test or Run to execute the test
  4. Review the results and output details

Common Use Cases

  • Testing CSS selectors against sample HTML markup
  • Learning CSS selector syntax with instant feedback
  • Debugging CSS selectors that aren't matching elements
  • Validating complex CSS selectors before deployment

Frequently Asked Questions

Is CSS Selector Tester free to use?
Yes, CSS Selector Tester is completely free with no signup required. You can use it as many times as you need.
Is my data safe when using CSS Selector Tester?
Absolutely. All processing happens directly in your browser. Your data is never sent to any server or stored anywhere.
Do I need to install anything?
No installation is needed. CSS Selector Tester runs entirely in your browser and is ready to use immediately.
Can I save or share test results?
You can copy the results from the output area. All testing happens locally in your browser for maximum privacy.
Are there any rate limits?
No, since processing happens in your browser, there are no rate limits or usage restrictions.

💬 User Feedback

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