Nested vs. Concatenated CSS Classes: What's the Difference?

CSS Class Syntax: Deciphering the Difference between Nested and Concatenated Classes

In the realm of CSS styling, two distinct class syntaxes can often perplex developers:

1. Nested Classes: .element .symbol

This format employs nested class names, indicating that the styles apply to elements with the class "symbol" within a parent element with the class "element."

2. Concatenated Classes: .element.large .symbol

In contrast, concatenated classes represent multiple classes applied to a single element. In this case, the element must possess both the "element" and "large" classes for the styles to take effect.

To further clarify the distinction:

• Nested classes (.element .symbol) target specific elements within a larger container.
• Concatenated classes (.element.large .symbol) ensure that an element meets multiple criteria to inherit the designated styles.

Thus, in the example provided:

• .element .symbol applies styles to elements with the class "symbol" that are descendants of elements with the class "element."
• .element.large .symbol applies styles only to elements that simultaneously have the classes "element," "large," and "symbol."

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