[C#] Jumping

Unity Engine
1 
using UnityEngine;
using System.Collections;

public class jump : MonoBehaviour {

    public int jumpSpeed;
    public GameObject player;

    void OnMouseDown() {
        Debug.Log ("Touched Screen");
        player.rigidbody2D.AddForce(Vector3.up * jumpSpeed * Time.deltaTime);
        }
}

I have done this, on the object the script is attached to, there is a BoxCollider2D spanning the whole screen.

It doesn’t work.

2

Remove the Time.deltaTime

3

Thank you!