Arduino PWM Fade

int rLed = 11;
int gLed = 10;
int bLed = 9;
int wLed = 6;
void setup() {
  // put your setup code here, to run once:
  pinMode(rLed, OUTPUT);
  pinMode(gLed, OUTPUT);
  pinMode(bLed, OUTPUT);
  pinMode(wLed, OUTPUT);
}
void loop() {
  // put your main code here, to run repeatedly:
  //red led Fade
  for(int i = 0; i < 256; i++){
    analogWrite(rLed, i);
    delay(10);
    }
  for(int i = 255; i > 0; i--){
    analogWrite(rLed, i);
    delay(10);
    }
//green led fade
  for(int i = 0; i < 256; i++){
    analogWrite(gLed, i);
    delay(10);
    }
  for(int i = 255; i > 0; i--){
    analogWrite(gLed, i);
    delay(10);
    }

  for(int i = 0; i < 256; i++){
    analogWrite(bLed, i);
    delay(10);
    }
  for(int i = 255; i > 0; i--){
    analogWrite(bLed, i);
    delay(10);
    }

  for(int i = 0; i < 256; i++){
    analogWrite(wLed, i);
    delay(10);
    }
  for(int i = 255; i > 0; i--){
    analogWrite(wLed, i);
    delay(10);
    }
}