The standard aspect ratio for YouTube on a computer is 16:9. If your video has a different aspect ratio, the player will automatically change to the ideal size ... ... <看更多>

YouTube Video Size: The Perfect Resolution, Dimensions & Aspect Ratio +Thumbnail ... YouTube allows you to upload videos of various sizes, ... ... <看更多>

Check out our comprehensive review of YouTube video size guidelines, including dimension, resolution, and aspect ratio. ... <看更多>

Facebook, Image pixel size. Facebook Feed, For images with a link on desktop 479 x 246 pixels, and on mobile min width 320 pixels. We recommend 1,080 x ... ... <看更多>

No. It is not. If you want to scale your web app, you should use relative units like % , vw , or vh . You can read more about it here. ... <看更多>