Forward_Station_Server/scss/free/_input-group.scss

// Input group
.md-form {
  &.input-group {
    label {
      top: 0;
      margin-bottom: 0;
    }
    .input-group-text {
      background-color: $input-group-text-bgc;
      &.md-addon {
        border: none;
        background-color: transparent;
        font-weight: 500;
      }
    }
    .form-control {
      margin: 0;
      padding: $input-group-form-control-py $input-group-form-control-px;
    }
  }
}