What does it mean?
Thumbnail sizes refer to the dimensions of a small image that is used to represent a larger image or video. These images are commonly used in web design to provide a preview of content, such as a gallery of images or a video player. The size of a thumbnail can vary depending on the design of the website, but typically ranges from 50 to 300 pixels in width and height. The purpose of a thumbnail is to give the user a quick and easy way to preview content without having to load the full-size image or video. This can help to improve the user experience by reducing load times and making it easier to navigate through large amounts of content. It is important to consider the size and quality of thumbnails when designing a website to ensure that they are optimized for both performance and usability.