.ddl_box .ddl_head {
  width: 120px;
  height: 40px;
  border: 1px solid #ccc;
  border-radius: 5px;
  box-sizing: border-box;
  overflow: hidden;
  position: relative;
  padding: 0 10px;
  line-height: inherit;
  cursor: pointer;
  background-color: #fff;
  line-height: 38px;
}
.ddl_box .ddl_head .caret {
  display: inline-block;
  width: 0;
  height: 0;
  margin-left: 2px;
  vertical-align: middle;
  border-top: 4px solid;
  border-right: 4px solid transparent;
  border-left: 4px solid transparent;
  position: absolute;
  right: 10px;
  top: 50%;
  color: #000;
}
.ddl_box .ddl_text {
  width: 100%;
  height: 38px;
  line-height: 38px;
  border: 0;
  font-size: 14px;
}
.ddl_box .ddl_body {
  background-color: #fff;
  display: none;
  margin-top: 2px;
  position: absolute;
  z-index: 10000;
}
.ddl_box .ddl_body .ddl_ul {
  border: 1px solid #ccc;
  box-sizing: border-box;
  width: 120px;
  max-height: 500px;
  overflow: auto;
}
.ddl_box .ddl_body .ddl_ul .ddl_li {
  height: 40px;
  line-height: 40px;
  box-sizing: border-box;
  border-bottom: 1px solid #ccc;
  cursor: pointer;
  padding: 0 10px;
  overflow: hidden;
}
.ddl_box .ddl_body .ddl_ul .ddl_li > span {
  pointer-events: none;
}
.ddl_box .ddl_body .ddl_ul .ddl_li:last-child {
  border: 0;
}
.ddl_box .ddl_body .ddl_ul .ddl_li:hover {
  background-color: #aaa;
  color: #fff;
}

.thick.ddl_box .ddl_head {
  border: 2px solid #BDC3C7;
  line-height: 36px;
}
.thick.ddl_box .ddl_head .caret {
  background-image: url(../Images/material_fold.png);
  display: block;
  width: 20px;
  height: 20px;
  position: absolute;
  top: 10px;
  right: 10px;
  border: 0;
}
.thick.ddl_box .ddl_ul {
  border: 2px solid #BDC3C7;
}
.thick.ddl_box .ddl_ul .ddl_li {
  border-bottom: 2px solid #BDC3C7;
}

.MR_ddl.ddl_box {
  width: 290px;
}
.MR_ddl.ddl_box .ddl_head {
  width: 290px;
  border: 2px solid #dfdfdf;
  line-height: 36px;
  color: #666;
  padding: 0 5px;
}
.MR_ddl.ddl_box .ddl_head .caret {
  background-image: url(../Images/material_fold.png);
  display: block;
  width: 20px;
  height: 20px;
  position: absolute;
  top: 10px;
  right: 5px;
  border: 0;
}
.MR_ddl.ddl_box .ddl_text {
  font-size: 14px;
}
.MR_ddl.ddl_box .ddl_body {
  width: 290px;
}
.MR_ddl.ddl_box .ddl_ul {
  width: 100%;
  border: 2px solid #dfdfdf;
  max-height: 300px;
  overflow: auto;
}
.MR_ddl.ddl_box .ddl_ul .ddl_li {
  border-bottom: 2px solid #dfdfdf;
  color: #666;
  font-size: 14px;
  padding: 0 5px;
  word-break: keep-all;
}

.nav_ddl.ddl_box {
  width: 140px;
  height: 36px;
}
.nav_ddl.ddl_box .ddl_head {
  width: 140px;
  height: 36px;
  border: 1px solid #bcbcbd;
  line-height: 36px;
  color: #444;
}
.nav_ddl.ddl_box .ddl_head .caret {
  background-image: url(../Images/material_fold.png);
  display: block;
  width: 20px;
  height: 20px;
  position: absolute;
  top: 10px;
  right: 10px;
  border: 0;
}
.nav_ddl.ddl_box .ddl_body {
  width: 140px;
}
.nav_ddl.ddl_box .ddl_ul {
  width: 100%;
  border: 1px solid #bcbcbd;
}
.nav_ddl.ddl_box .ddl_ul .ddl_li {
  height: auto;
  border-bottom: 1px solid #bcbcbd;
  color: #444;
  line-height: 36px;
}

.login_ddl.ddl_box {
  width: 270px;
  height: 40px;
}
.login_ddl.ddl_box .ddl_head {
  width: 270px;
  height: 40px;
  border: 1px solid #959FA9;
  line-height: 40px;
  color: #000;
}
.login_ddl.ddl_box .ddl_head .caret {
  display: inline-block;
  width: 0;
  height: 0;
  margin-left: 2px;
  vertical-align: middle;
  border-top: 4px solid;
  border-right: 4px solid transparent;
  border-left: 4px solid transparent;
  position: absolute;
  right: 10px;
  top: 50%;
  color: #000;
}
.login_ddl.ddl_box .ddl_body {
  width: 270px;
}
.login_ddl.ddl_box .ddl_ul {
  width: 100%;
  border: 1px solid #959FA9;
}
.login_ddl.ddl_box .ddl_ul .ddl_li {
  height: 40px;
  border-bottom: 1px solid #959FA9;
  color: #000;
  line-height: 40px;
}

.Info_ddl.ddl_box {
  width: 180px;
  height: 36px;
}
.Info_ddl.ddl_box .ddl_head {
  width: 180px;
  height: 36px;
  border: 1px solid #bcbcbd;
  line-height: 36px;
  color: #444;
}
.Info_ddl.ddl_box .ddl_head .caret {
  background-image: url(../Images/material_fold.png);
  display: block;
  width: 20px;
  height: 20px;
  position: absolute;
  top: 10px;
  right: 10px;
  border: 0;
}
.Info_ddl.ddl_box .ddl_body {
  width: 180px;
}
.Info_ddl.ddl_box .ddl_ul {
  width: 100%;
  border: 1px solid #bcbcbd;
}
.Info_ddl.ddl_box .ddl_ul .ddl_li {
  height: 36px;
  border-bottom: 1px solid #bcbcbd;
  color: #444;
  line-height: 36px;
}