Gravity Forms Custom Checkbox Input layout

gf_custom_chckb.php

<?php

add_filter( "gform_field_input", "checkbox_input", 10, 5 );

/**
 * Filter the input to be a differently structured checkbox input
 * 
 * @hook gform_field_input
 */
function checkbox_input($input, $field, $value, $lead_id, $form_id) {
	// if the field has a CSS 'ch' class assigned, let's modify its output for the sake of easier CSS
	if ( $field["cssClass"] == "ch" ) {
		// to simplify the output lets use output buffering
		ob_start();
		?>
		<label class = "check-box">
			<input name="input_<?php echo $field['id']; ?>" id="input_<?php echo $form_id; ?>_<?php echo $field['id']; ?>" type = "checkbox" <?php checked( $value ); ?> /> By joining I agree to receive updates, newsletters and agree to the terms & conditions & privacy policy
		</label>
		<?php
		$input = ob_get_clean();
	}
	return $input;
}