SynchDivScroll is a JavaScript utility that allows groups of scrollable divs to be manually scrolled in synchronisation. Scrolling is proportional, meaning that when a div is scrolled by the user, the corresponding scrollbar on the other divs will be positioned at the same percentage displacement, regardless of the relative length of the content. Both horizontal and vertical scrolling are supported. Synchronised scrolling can be applied to multiple independent div groups, each group comprised of any number of div elements.

• Any number of divs in a group
• Multiple independent div groups
• Vertical and horizontal scrolling
• Proportional scrolling means divs can have different lengths
• Scroll-on-load; synchronises the rest of a group if one is scrolled at startup
• Can be combined with other div scrolling scripts as demonstrated here
• Very simple installation and configuration
• The equivalent whole-frame scroller is SynchScroll

You may find that some nested divs do not 'appear' to move when scrolled. This is due to a recently-introduced bug in Chrome and is not script-related. We expect Google to fix this issue soon.