@charset"utf-8";
#main{
   margin: 0;
   padding: 0;
   }
table{
   margin-top: 20px;
   margin-left: 20px;
   margin-bottom: 20px;
   width: 640px;
   }
th{
   width: 320px;
   text-align: center;
   vertical-align: middle;
   }   
td{
   text-align: center;
   vertical-align: middle;
   }
#main li{
   padding-left: 20px;
   list-style-position: inside;
   list-style-type: decimal;
   }