: This is a CSS class selector . The cryptic name (like byqzVnPp ) is often generated by tools like Styled Components or CSS Modules to ensure that styles remain unique to a specific part of the page and don't interfere with others.
If you want to see exactly what this class is doing on a live site, you can use built-in browser tools: Why does New York Time has this CSS classes on their page? .byqzVnPp { vertical-align:top; cursor: pointe...
: This property sets the vertical alignment of an element relative to its container or surrounding text, often used for images or table cells. : This is a CSS class selector