img.profile {
  width: 67%;
  margin: auto;
  display: block;
  padding-bottom: 0.5em;
}

@media only screen and (min-width: 600px) {
  img.profile {
    width: 400px;
  }
}

@media only screen and (min-width: 800px) {
  img.profile {
    display: inline;
    float: right;
    margin-left: 1em;
  }
}