body{
background-image : url(https://s3-ap-northeast-1.amazonaws.com/static.iyp.tw/38156/files/828d83f3-6cbc-4b14-a566-818d08689870.jpg);
background-repeat : no-repeat; 
background-attachment : fixed;
background-position : center; 
}
p {font-size: 14px;color: #444;}
#nav {background-color: #2e5a80;}
#nav ul li a{padding: 15px 77px;}
#nav ul li a:hover{padding: 15px 97px;}
#nav ul li.current a {background-color: #53779a;}