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Asked by Ushashree Last Modified
Answer According to the CSS specifications, a class name in CSS can start with a number, but there are certain rules and considerations to keep in mind:
CSS2 Specification:
CSS3 Specification:
Here's an example of a valid CSS class name that starts with a digit:
.123ClassName { color: red; } While it's technically allowed, it's generally better to start class names with a letter or an underscore for better compatibility and to avoid potential confusion.
._123ClassName { color: red; } Always keep in mind that good naming conventions and readability are crucial for maintainable and understandable code. If you have the flexibility to choose the class name, consider starting with a letter or underscore to follow common conventions and avoid any potential edge cases.
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