[TheLastSuperman]

That is related to how you've modified the sidebar to show quotes as well quotes, it has nothing to do with this style however let's see if I can't help .

Using the link in your signature and changing styles I now see the issue, it could simply be the stylevar for the sidebar width.

AdminCP > Styles & Templates > Style Manager > Style Variable Editor > *Scroll to find: Sidebar > In that family of stylevars edit the top one which is forum_sidebar_width

Try increasing it from 270 in increments of 5 i.e. next try 275 as width, keep saving and refreshing until the sidebar block scrollbars are gone. The issue is the content within the sidebar blocks is wider than the allowed size (based on current width of 270+padding) and therefor adding in the scrollbar to ensure all content is displayed.

Alternatively you can add this to additional.css which should adjust that custom div class you have going (showing the quotes as quotes in the sidebar is the actual area making it too wide), you can do this by editing additional.css and adding this at the very bottom:

.blockrow div.livewall_preview {
    margin-right: 6px;
}

margin-right is what we are adding here.

Let me know .