#page_menu {background: url("../images/tt_04.gif"); width: 184px; height: 368px;}
#page_menu ul {list-style: none; padding-left: 1.2em; padding-top: 2em;}
#page_menu li {margin-bottom: .5em;}
#page_menu a {display: block; width: 151px; height: 31px;}

#page_menu a.intro {background: url(../images/menu/1.gif) no-repeat;}
#page_menu a.intro:hover {background: url(../images/menu/1-1.gif) no-repeat;}

#page_menu a.biz {background: url(../images/menu/2.gif) no-repeat;}
#page_menu a.biz:hover {background: url(../images/menu/2-2.gif) no-repeat;}

#page_menu a.case {background: url(../images/menu/3.gif) no-repeat;}
#page_menu a.case:hover {background: url(../images/menu/3-3.gif) no-repeat;}

#page_menu a.qa {background: url(../images/menu/4.gif) no-repeat;}
#page_menu a.qa:hover {background: url(../images/menu/4-4.gif) no-repeat;}

#page_menu a.hr1 {background: url(../images/menu/5.gif) no-repeat;}
#page_menu a.hr1:hover {background: url(../images/menu/5-5.gif) no-repeat;}

#page_menu a.hr2 {background: url(../images/menu/6.gif) no-repeat;}
#page_menu a.hr2:hover {background: url(../images/menu/6-6.gif) no-repeat;}

#page_contact_us {line-height: 1.5; border: 5px solid #e7e7e7; margin-top: .5em; padding: .5em;}