Example of accessing static members

GameSettings.cs

//Game settings class
public class GameSettings
{
    //Declare this as static meaning it is accessable via the class name
    public static RandomClass RandomSettings = new RandomClass();
}

//Class decleration for Random.
public class RandomClass
{
    public float floatvar = 0867.9087f;
}

//Example of accessing the data from another class such as a Monobehaviour
//Have this in a new file called MyMono.cs 
using UnityEngine;
public class MyMono : MonoBehaviour
{
    public void Start()
    {
        Debug.Log("floatvar value: " + GameSettings.RandomSettings.floatvar);
    }
}