"Front-end" javascript+jquery for accordion-style scrolling banner or product display

Achieve results

Implementation steps

Mouse into Li, the box becomes wider, the other boxes become narrower, the mouse moves away from the large box and reverts to the original
Implementation steps
1. Add a background to Li
2. Bind the onmouseover event, mouse into Li, the box becomes wider, the other box narrows
3. Remove the box and return to the original

Implementation code

<! DOCTYPE html>
　　
"Front-end" javascript+jquery for accordion-style scrolling banner or product display