CSS Specificity Calculator - Calculate CSS Selector Scores

What This Tool Does & Key Features

The CSS Specificity Calculator helps you determine the specificity score of a CSS selector. This is crucial for understanding how CSS rules are applied on your web pages. The tool supports inline styles, IDs, classes, and elements, providing a clear breakdown of each component.

Step-by-Step How to Use Guide

1. Enter your CSS selector in the input field.
2. The tool will automatically calculate and display the specificity score.
3. Review the breakdown of inline styles, IDs, classes, and elements.

Underlying Formula / Technical Logic

The specificity score is calculated based on the following formula:

• Inline styles: 1000
• IDs: 100 each
• Classes, pseudo-classes, attributes: 10 each
• Elements, pseudo-elements: 1 each

Practical Real-World Examples

Example 1

Input: #nav .menu > li a:hover Output: Inline: 0, IDs: 1, Classes: 2, Elements: 4, Total: 0,1,2,4

Example 2

Input: .btn-primary:hover Output: Inline: 0, IDs: 0, Classes: 2, Elements: 0, Total: 0,0,2,0

Comparison or Decision Matrix / Checklist

Feature	Inline Styles	IDs	Classes, Pseudo-Classes, Attributes	Elements, Pseudo-Elements
Score	1000	100 each	10 each	1 each

Common Mistakes & How to Avoid Them

• Mistake: Not understanding the difference between IDs and classes.
• How to Avoid: Remember that IDs are more specific than classes.
• Mistake: Forgetting to include pseudo-classes and pseudo-elements in your calculations.
• How to Avoid: Always consider pseudo-classes and pseudo-elements in your specificity score.

Conclusion

Calculate CSS selector specificity scores easily with the CSS Specificity Calculator. This tool helps you understand how your CSS rules are applied on your web pages, ensuring that your styles are applied correctly.