Focal Point Camera Rotation

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

//Create empty game object and call it focal point. Make the camera a child of this.
public class RoatateCamera : MonoBehaviour
{
    public float roatationSpeed;

    void Start()
    {

    }

    void Update()
    {
        float horizonatalInput = Input.GetAxis("Horizontal");
        transform.Rotate(Vector3.up, horizonatalInput * roatationSpeed * Time.deltaTime);
    }
}