Can you explain the concept of CSS containment and its use cases?
Instruction: Describe what CSS containment is and how it can be used to improve web performance.
Context: This question tests the candidate's knowledge on CSS containment property, a modern CSS feature aimed at allowing developers to isolate a subtree of the document to improve rendering performance.
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CSS containment, at its core, is a CSS property introduced to help developers improve the performance of their web pages by allowing them...