: This is the selector. The random string of characters suggests it was generated by a compiler (like Emotion, Styled-components, or Google's internal tools) to ensure that this specific style doesn't accidentally affect other parts of the website.
The code snippet .mXSoMnO2 { vertical-align:top; cursor: pointer; ... } is a CSS (Cascading Style Sheet) class, likely generated by a or an automated build tool like Google Search's internal framework . .mXSoMnO2 { vertical-align:top; cursor: pointe...
In modern web development, these "obfuscated" class names are used to optimize performance and prevent styling conflicts. Anatomy of the Snippet : This is the selector