Crust: Combine pretzels, butter and 1/4 cup sugar. Press into 9-by-13-inch baking dish and bake in preheated 350 F oven for 10 minutes. Cool to room temperature.
White Layer: Cream together cream cheese and 1 cup sugar. Fold in whipped topping. Spread over pretzel crust.
Red Layer: Dissolve gelatin in boiling water. Stir in frozen strawberries. Chill until partially set, about 1 hour, and spread over white layer. Chill until set and serve.