@media screen and (min-width: 767px) {
  /* extra small */
  #format4.extraSmall.singleDigit {
    font-size: 3.2vw;
  }
  #format4.extraSmall.doubleDigit {
    width: 6vw;
    height: 6vw;
    font-size: 2.5vw;
  }
  #format4.extraSmall.tripleDigit {
    width: 6vw;
    height: 6vw;
    font-size: 2.8vw;
  }

  /* base small */
  #format4.baseSmall.doubleDigit {
    font-size: 5vw;
  }
  #format4.baseSmall.tripleDigit {
    font-size: 4.4vw;
  }
  #format4.baseSmall.fourDigit {
    font-size: 4vw;
  }

  /* base */
  #format4.base.doubleDigit {
    font-size: 8vw;
  }
  #format4.base.tripleDigit {
    font-size: 6.5vw;
  }
  #format4.base.fourDigit {
    font-size: 6vw;
  }

  /* medium */

  #format4.medium.doubleDigit {
    font-size: 13vw;
  }
  #format4.medium.tripleDigit {
    font-size: 11vw;
  }
  #format4.medium.fourDigit {
    font-size: 10vw;
  }
}