Hi bokin
Here is what you have to do:
Open the css file of your theme. It’s called templates.css. Scroll down to line 1523. There you will finde following code:
#sidebar {
background-color: #FFFFFF;
border-left: 1px solid #CCCCCC;
border-radius: 3px;
padding: 10px 15px;
}
Now add height and position to the code like this:
#sidebar {
background-color: #FFFFFF;
border-left: 1px solid #CCCCCC;
border-radius: 3px;
padding: 10px 15px;
height: 100% !important;
position: absolute;
}
Mike