body{ margin: auto;}
#offer{margin-top: 10px;}
#offer table{width:90%; margin: auto; border-collapse: collapse;font-size: 12px;}
#offer td{border:1px #66828E solid; text-align: center;}
#offer tH{border:1px #66828E  solid; text-align: center; background-color: #586D80; color:#FFFFFF;}

#offer_nav{width: 90%;margin:auto; height: 40px; padding: 0px ;background-color: #7A848D; font-size: 12px;}
#offer_nav_ul{margin: 0px;list-style: none;padding: 0px}
.offer_nav_ul_li{float: left;line-height: 40px;background-color:#586D80; font-size: 12px;color: aliceblue;width: 10%;text-align: center;}
#offer_nav li:active{text-decoration: none;background-color:#66828E;}
#offer_nav li:hover{background-color:#66828E;}
#offer_nav a:link{color: aliceblue;text-decoration: none;}
#offer_nav a:active{color: aliceblue; text-decoration: none;}
#offer_nav a:visited{color: aliceblue; text-decoration: none;}
#offer_nav a:hover{color: aliceblue; text-decoration:underline;}

#explain{width:90%; margin: 10px auto; border-collapse: collapse;font-size: 16px; border:1px solid #586D80;line-height: 24px; color: #000455;}