Striped Delight

This is one of my favorite desserts.

Layer 1
1 1/2 cups graham cracker crumbs
1/4 cup granulated sugar
1/3 cup butter or margarine, melted

Layer 2
8 ounces cream cheese, softened
1/2 cup granulated sugar
2 tablespoons milk
1/2 (8 ounce) container Cool Whip