.maindiv{
    width: 80%;
    height: 20%;
    margin-left:auto;
    margin-right: auto;
    margin-top:20vh;
    margin-bottom: auto;
    background-color:#4472C4;
    align-content: center;
    text-align:center;
    padding-top: 3rem ;
    padding-bottom: 3rem ;
    color: white;
    font-size:24px;
}

.img-logo{
    background-color:white;
    margin-left:auto;
    margin-right: auto;
    width:90%;
}

@media (min-width: 500px) {
    .maindiv {
      width: 60%;
    }
  }

@media (min-width: 1200px) {
    .maindiv {
      width: 40%;
    }
  }