What are cls?

CLS can refer to different concepts depending on the context. In finance, it often stands for "Central Limit Theorem," which describes how the distribution of sample means approaches a normal distribution as sample size increases. In the context of programming, particularly in web development, CLS stands for "Cumulative Layout Shift," a metric that measures visual stability during page loading. Additionally, CLS could refer to "Common Language Specification" in .NET programming, which defines a set of rules for language interoperability.