%toggle {
  position: relative;
}
%toggle input {
  display: none;
}
%toggle span {
  display: inline-block;
  padding-left: 25px;
}
%toggle span::before,
%toggle span::after {
  position: absolute;
  display: block;
  content: '';
  top: 50%;
}
%toggle span::before {
  left: 0px;
  width: 20px;
  height: 12px;
  margin-top: -8px;
}
%toggle span::after {
  left: 2px;
  margin-top: -6px;
  width: 8px;
  height: 8px;
}
%toggle input:checked + span::after {
  left: 10px;
}