#idiomab option {
  padding-left: 30px;
  background-repeat: no-repeat;
  background-size: 20px;
  background-position: 5px center;
}

#idiomab option[data-flag="es"] { background-image: url("https://cdn.jsdelivr.net/gh/lipis/flag-icons/flags/4x3/es.svg"); }
#idiomab option[data-flag="us"] { background-image: url("https://cdn.jsdelivr.net/gh/lipis/flag-icons/flags/4x3/us.svg"); }
#idiomab option[data-flag="pt"] { background-image: url("https://cdn.jsdelivr.net/gh/lipis/flag-icons/flags/4x3/pt.svg"); }
#idiomab option[data-flag="br"] { background-image: url("https://cdn.jsdelivr.net/gh/lipis/flag-icons/flags/4x3/br.svg"); }
#idiomab option[data-flag="mx"] { background-image: url("https://cdn.jsdelivr.net/gh/lipis/flag-icons/flags/4x3/mx.svg"); }
#idiomab option[data-flag="co"] { background-image: url("https://cdn.jsdelivr.net/gh/lipis/flag-icons/flags/4x3/co.svg"); }
#idiomab option[data-flag="cl"] { background-image: url("https://cdn.jsdelivr.net/gh/lipis/flag-icons/flags/4x3/cl.svg"); }