/* TOP
----------------------------*/
.mainImg {
  margin-bottom: 25px;
}
.topRead {
  font-size: 115.385%;
  line-height: 1.625;
  float: left;
  width: 520px;
}
#btContact {
  float: right;
  width: 200px;
}
.topLeft, .topRight {
  font-size: 123.077%;
  background: url("../img/common/bg_ttl_border_01.gif") repeat-x 0 top;
  font-weight: bold;
  padding: 13px 13px 0 0;
}
.topLeft a, .topRight a {
  display: block;
  background: url("../img/common/ico_arr_sq_03.gif") no-repeat 0 0.2em;
  padding-left: 18px;
}
.topLeft {
  float: left;
  width: 355px;
}
.topRight {
  float: right;
  width: 355px;
}


/* 100G DWDM伝送システム
------------------------------ */
.historyLink{
  margin-top: 10px;
  text-align: right;
}
.historyLink a{
  display: inline-block;
  padding: 8px 13px;
  border:solid 1px #E2E2E2;
}
.historyLink span {
  background: url("../img/common/ico_arr_sq_03.gif") no-repeat 0 0.1em;
  padding-left: 19px;  
}

/* 光海底ケーブルシステム
----------------------------*/
.aboutDetail {
  margin-bottom: 132px;
}
.aboutDetail .aboutDetailIn {
  float: left;
  width: 236px;
  margin-right: 24px;
  background: url(../submarine_cable/img/bg_submarine_cable-detail_bottom.gif) no-repeat 0 bottom;
  padding-bottom: 4px;
}
.aboutDetail .aboutDetailIn div {
  background: url(../submarine_cable/img/bg_submarine_cable-detail_top.gif) no-repeat 0 top;
  padding-top: 4px;
}
.aboutDetail .aboutDetailIn a {
  display: block;
  background: url(../submarine_cable/img/bg_submarine_cable-detail_middle.gif) repeat-y;
  padding: 14px 15px 11px;
}
.aboutDetail .aboutDetailIn span {
  display: block;
  background: url(../img/common/ico_arr_02.gif) no-repeat 0 0.5em;
  padding-left: 12px;
}
.aboutDetail .last {
  margin-right: 0;
}