Create Scroll to Archieve List or Blog Archieve Widget

Go To Template > Edit HTML > Expand widget >
find <div id='archivelist' add the following code
just like this

 <div id='ArchiveList' style='border: 1px solid rgb(204, 204, 204); padding: 5px; overflow: auto; width: 100%; height: 200px; background-color: transpartent;'>

very simple !!!