.hr { border-bottom: 1px dotted #ff8c00 }
.td_yy { width: 40px; border-right: 1px solid #a9a9a9; border-bottom: 1px dotted #a9a9a9 }
.td_mm { width: 40px; border-right: 1px solid #a9a9a9; border-bottom: 1px dotted #a9a9a9 }
.td_contents { border-bottom: 1px dotted #a9a9a9 }
.table_his { font-size: 11px; width: 430px }
.left { float: left }