While the exact source website may vary depending on the build, the code you provided defines specific layout and interaction behaviors for an element: Breakdown of the Code
If you see many classes with similar 8-10 character random strings, the site is likely using CSS-in-JS . Practical Usage Example
The CSS class .sSovYqNR appears to be a , commonly used by modern web frameworks like React or styled-components to ensure scoped styling.
Open the website in your browser, right-click the element, and select Inspect .