From the style.css:
/* Sidebars */
#leftside{clear:left; float:left; line-height:1.4em; margin:0 0 5px; padding:0; width:140px;}
#extras{float:right; line-height:1.4em; margin:0 0 5px; padding:0; width:140px;}
#leftside p, #leftside ul, #leftside div.textwidget, #extras p, #extras ul, #extras div.textwidget{font-size:0.9em; margin:0 0 20px;}
#leftside li, #extras li{line-height:1.2em; list-style:none; margin:0 0 6px;}
#leftside ul ul, #extras ul ul{margin:6px 0 0 10px;}
#leftside ul ul li, #extras ul ul li{margin:0 0 4px;}
#leftside ul ul li a, #extras ul ul li a{font-weight:normal;}
#leftside ul.linklist, #extras ul.linklist{font-size:1em;}
#leftside ul.linklist ul, #extras ul.linklist ul{margin:0 0 20px;}
#leftside ul.linklist ul li a, #extras ul.linklist ul li a{font-weight:bold;}
#leftside h2, #leftside ul.linklist li h2, #leftside h3, #extras h2, #extras ul.linklist li h2, #extras h3, table#wp-calendar caption{background-color:inherit; color:#505050; font-size:1.3em; font-weight:normal; text-align:left; margin:0 0 6px;}
#leftside label, #extras label{display:none;}