table.midasi {border-collapse:collapse; width:580px;}
td.midasi {border:1px solid #6666cc; font-size:small; height:30px;
           padding:2px; width:160px; background:#f0f8ff; text-align:left;}
td.naiyou {border:1px solid #6666cc; padding:4px; width:420px; font-size:small;
           text-align:left;}