You will often see these "scrambled" class names on major platforms (like Google, Facebook, or LinkedIn). This practice is called or CSS-in-JS . The primary benefits include:

: This changes the mouse cursor into a hand icon when a user hovers over the element. It is the standard visual cue to indicate that the item is a clickable link or button. Why are names like .qSr7AQ7F used?

: Tools can automatically shorten long, descriptive names into these tiny strings to reduce the overall size of the website's code, helping it load faster.

Are you trying to this specific style on a website, or are you debugging code you've written yourself? What is the purpose of dynamic CSS class names? - Facebook

The CSS snippet you've shared, .qSr7AQ7F { vertical-align:top; cursor: pointer; } , uses an obfuscated or dynamically generated class name. Such names are commonly produced by modern web frameworks and tools—like , Angular , or Tailwind CSS —during the build process to ensure that styles remain isolated to specific components and do not clash with other parts of the site. Breakdown of the Styling Properties

: This property controls how an element is positioned vertically relative to its container or surrounding text. Using top aligns the top of the element with the top of the tallest element on the same line.

: Developers can write simple CSS without worrying about global naming conflicts.