#usaair{width:750px;}
#usaair h2{width:750px;display:block;margin-bottom:15px;}
ul#usanavi,ul#usanavi li{float:left;}
ul#usanavi li{width:370px;display:inline;}
#usaair #detail001{width:750px;height:215px;background:url(./images/detail001.jpg);margin-bottom:40px;}
#usaair #detail002{width:750px;height:420px;background:url(./images/image002.jpg);margin-bottom:0px;}
#usaair #detail003{width:750px;height:569px;background:url(./images/image003.jpg);margin-bottom:40px;}
#usaair ul#detail004{width:750px;float:left;margin-bottom:30px;}
#usaair ul#detail004 li{width:375px;float:left;display:inline;margin:0px;}
#usaair #detail005{width:750px;height:109px;background:url(./images/image005.jpg) no-repeat left top;margin-bottom:40px;}

#usaair #syousai01{padding:145px 0 0 385px;}
#usaair #syousai02{padding:0px 0 0 385px;margin-bottom:40px;}
#usaair #syousai03{padding:525px 0 0 0px;float:right;}
#usaair #syousai04{padding:72px 0 0 385px;}