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by mcbits
3021 days ago
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Elements can often be unique today but not tomorrow as pages grow in complexity and start sharing features. Ids are fine (even necessary) for things that are unique in their very essence, like a label's for="", the target for a URL fragment, or things that need special individualized treatment in JavaScript. In the common "unique today" case, ids provide no benefit over classes as simple styling hooks and quickly become a PITA when they start colliding. |
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