.form-lg .form-input,
.form-input.input-lg {
    @include form-control(56);
}

.form-input,
.form-md .form-input,
.form-input.input-md {
    @include form-control(48);
}

.form-sm .form-input,
.form-input.input-sm {
    @include form-control(40);
}