.nu_select {
  color: #333;
}
.nu_select select {
  border: 1px solid #ddd;
  border-radius: 3px;
  height: 40px;
  font-size: 16px;
  line-height: 38px;
  padding: 0px 23px 0px 15px;
  background: transparent url("data:image/svg+xml,%3Csvg viewBox='0 0 1024 1024' xmlns='http://www.w3.org/2000/svg' width='24' height='24'%3E%3Cpath fill='%23333' d='M298.445 443.238L515.584 660.48l217.242-217.242z'/%3E%3C/svg%3E") no-repeat 100% 50%;
}
.nu_select select:disabled {
  color: #999;
  border-color: #999;
  cursor: not-allowed;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 1024 1024' xmlns='http://www.w3.org/2000/svg' width='24' height='24'%3E%3Cpath fill='%23999' d='M298.445 443.238L515.584 660.48l217.242-217.242z'/%3E%3C/svg%3E");
}
.nu_select._l select {
  height: 48px;
  line-height: 46px;
}
.nu_select._xs select {
  height: 24px;
  font-size: 12px;
  line-height: 22px;
  padding-left: 7px;
  padding-right: 23px;
}
.nu_select._s select {
  height: 32px;
  font-size: 12px;
  line-height: 30px;
  padding-left: 7px;
  padding-right: 23px;
}
.nu_select._danger {
  color: red;
}
.nu_select._danger select {
  border-color: red;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 1024 1024' xmlns='http://www.w3.org/2000/svg' width='24' height='24'%3E%3Cpath fill='%23ff0000' d='M298.445 443.238L515.584 660.48l217.242-217.242z'/%3E%3C/svg%3E");
}