The CSS snippet you provided, .qYTdTVEs { vertical-align:top; cursor: pointer; ... } , appears to be an obfuscated or dynamically generated class name commonly found in the source code of results or other Google web applications.
: A randomized class selector. These are used to reduce file size and prevent external developers from easily "scraping" or styling the page in ways the provider doesn't intend.
If you are looking for a on how these systems work, you might be interested in the concept of CSS Modules or Atomic CSS , which explain why modern tech companies use these cryptic, non-human-readable class names.
: You may have copied this while looking at the source code of a Google search page.
: If you are trying to automate tasks or style a browser extension, these classes change frequently (often with every site update) and should not be relied upon for stable coding.