.form-item {
  position: relative;
}

.form-control {
 

  &:valid {
    border-color: @green;
  }

  &:focus  {
    border-color: @blue;
  }
}


.label-float {
  color: @gray-light;
  position: absolute;
  top: 0;
  line-height: (@space * 1.5);
  padding: 0 (@space / 2);
  .transition(line-height linear .2s);
  cursor: text;

  .form-control:focus + &,
  .form-control:valid + & {
    color: @gray-light;
    font-size: 12px;
    line-height: 1.5;
  }
}