button pressed, led stays on or off

button

const int buttonPin = 7;
const int ledPin =  11;
int ledState = LOW;
int buttonState = 0;
boolean pressed = false;

void setup() {
  pinMode(ledPin, OUTPUT);
  pinMode(buttonPin, INPUT);
  Serial.begin(9600);
}

void loop() {
  buttonState = digitalRead(buttonPin);

  if (buttonState == HIGH && pressed == false ) {
    // turn LED on:
    if (ledState == LOW) {
      ledState = HIGH;
      
    }
    else {
      ledState = LOW;
    }
    digitalWrite(ledPin, ledState);
    }
}