body {
    background-color: #D8DAE2;
    margin: 0;
    padding: 0;
}

.box {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .imgwrap {
     /* width: 50%; or whatever you choose */
     margin: auto;
  }
  .imgwrap img {
     display: block;
     /* width: 100%; */
     /* max-width: 500px; actual image width */
     max-height: 100vh; /* maintain aspect ratio*/
     margin: auto; /*optional centering of image*/
  }