cesium_example_auth/public/cesium_example/lib/jquery/select/jqSelect.css

 /*select*/
 .mp_select {
  height: 28px;
  line-height: 22px;
  padding: 0 5px;
  box-sizing: border-box;
  font-size: 12px;
  border: 1px solid #e6e6e6;
  background-color: #fff;
  border-radius: 3px;
  outline: 0;
  box-sizing: border-box;
  position: relative;
}

.mp_select:after {
  content: '';
  width: 0;
  height: 0;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.2s;
  position: absolute;
  border-width: 6px;
  display: inline-block;
  top: 10px;
  right: 5px;
  border-style: solid dashed dashed;
  border-color: #c2c2c2 transparent transparent;
}

.mp_selected:after {
  top: 4px;
  border-style: dashed dashed solid;
  border-color: transparent transparent #c2c2c2;
}

.mp_select .mp_select_text {
  padding: 0 20px 0 0;
  height: 28px;
  line-height: 26px;
  overflow: hidden;
}

.mp_select_ul {
  background: #fff;
  border: #d6d6d6 1px solid;
  border-radius: 3px;
  padding: 5px 0;
  box-shadow: 1px 2px 1px rgba(0, 0, 0, 0.15);
  position: absolute;
  left: 0;
  z-index: 1000;
  color: #333;
  text-align: center;
  width: 100%;
  display: none;
}

.mp_select_ul li {
  margin: 0 5px;
  border-radius: 3px;
  text-align: left;
  height: 28px;
  line-height: 28px;
  text-indent: 5px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mp_select_ul li:hover {
  background: #ecf1f8;
}

.mp_select_ul .selecton,
.mp_select_ul .selecton:hover {
  background: #3374e0 !important;
  color: #fff !important;
}

/*dark*/
.dark .mp_select {
  background-color: rgba(63, 72, 84, 0.6);
}

.dark .mp_select_ul {
  color: #ffffff;
  background-color: rgba(63, 72, 84, 0.8);
}

.dark .mp_select_ul li:hover {
  background-color: rgba(63, 72, 84, 1);
}

.dark .mp_select_ul .selecton,
.mp_select_ul .selecton:hover {
  background: rgba(63, 72, 84, 1) !important;
  color: #fff !important;
}