arduino pro micro left mouse button

#include <Mouse.h>
int buttonPin = 10;  // Set a button to any pin

void setup()
{
  pinMode(buttonPin, INPUT);  // Set the button as an input
  digitalWrite(buttonPin, HIGH);  // Pull the button high
}

void loop()
{
  if (digitalRead(buttonPin) == 0)  // if the button goes low
  {
    Mouse.press();
    delay(1);

  }
  else {Mouse.release();}
}