.fast-combo-box-input-cls .user-input {
  position: absolute;
  z-index: 1;
}
.fast-combo-box-input-cls .user-select {
  z-index: -1;
  border: 0px !important;
}
.fast-combo-box-input-cls .user-select input {
  border: 0px !important;
  height: 27px !important;
  line-height: 27px !important;
  opacity: 0;
}
.fast-combo-box-input-cls .user-select .el-input__suffix{
  opacity: 0;
}