The nature of these animated containers is what makes it work. A GIF doesn’t tell the browser how many frames to expect, so the connection is kept open until the “hey this is the last frame ...

A moving picture in GIF format, which comprises a series of frames. When displayed, they provide an animated sequence that cycles over and over without stopping. Although popular on the Web ...

Reducing the pixel dimensions of an image is the ... Reduce the number of frames in the image for animated GIFs. Avoid useless animation, in general. Excessive animation adds to web page download ...