Introduction - If you have any usage issues, please Google them yourself
Pictures seamless scrolling code
Contents 1 is a scrollable content, content is content directly clone a 2 by changing the content scrollTop 1 or scroll scrollLeft achieve the purpose, when the contents of a scroll to the junction with the content directly jump back to the initial position 2, because the contents of a 2 with the same content, it is too close to the beating moment to achieve "seamless" scrolling purposes.