Classes & IDs
All HTML topics∙ Chapter 19
Classes & IDs
class is for groups (many elements). id is unique (one element). They are used for CSS styling, JavaScript selection, and page links like href="#section".
ℹ️Tip: Prefer classes for styling. Use IDs for unique anchors or when you truly need a one-off target.
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💡 One element can have many classes, but an ID should be unique on the page.