@media only screen and (max-width: 1000px) {
  #quality .main {
    justify-content: center;
  }

  #quality .main > img {
    display: none;
  }

  #certificates {
    width: 80%;
  }
}

@media only screen and (max-width: 824px) {
  #certificates {
    width: 90%;
  }
}

@media only screen and (max-width: 734px) {
  #certificates {
    width: 70%;
  }

  #certificates .box {
    width: 190px;
  }
}

@media only screen and (max-width: 542px) {
  #certificates {
    width: 90%;
    justify-content: center;
  }

  #certificates .box {
    width: 220px;
  }
}