After creating an HTML page with an accordion in one div and a menu in another, I added a simple border styling to the right side of the menu using CSS properties like height, border-right-width, border-right-style, and border-right-color.
height:100%;
border-right-width:2px;
border-right-style:solid;
border-right-color:#4875B4;
Although everything seemed to be working fine, I noticed that when I expanded an accordion header, the border did not expand along with it (despite setting the height to 100%). The reason for this is that I cannot apply the border style directly to the accordion itself due to the code hiding it by default.
http://jsfiddle.net/ZxnAd/ JSFiddle To see the issue with the border not extending when expanding "section 3" on the accordion, please visit the provided link.