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Spesifisyysongelmat, also known as specificity problems, refer to issues that arise when a website's CSS (Cascading Style Sheets) rules are too broad or not specific enough, leading to unintended styling. This can happen when multiple CSS selectors target the same elements, causing conflicts and unpredictable styles. Specificity is a weight that is applied to a CSS selector to determine which rule is applied by the browsers. The specificity hierarchy is as follows: inline styles, IDs, classes, attributes, and elements/tags. When multiple rules have the same specificity, the last one defined in the CSS will be applied.

To avoid specificity problems, it's important to write CSS selectors that are as specific as necessary but no more. This can be achieved by using classes and IDs judiciously, avoiding overly complex selectors, and following a consistent naming convention. Tools like CSS specificity calculators can help identify and resolve specificity issues. Additionally, using CSS preprocessors like SASS or LESS can help manage specificity by providing features like nesting and mixins.

In summary, specificity problems occur when CSS rules are not specific enough, leading to unintended styling. To avoid these issues, it's crucial to write specific CSS selectors, use classes and IDs judiciously, and follow best practices for CSS management.