.avatar-ext {
  height: 13vw;
  width: 13vw;
}

.avatar {
  flex: none;
  max-width: none;
}

@media only screen and (max-width: 770px) {
  .avatar-ext {
    height: 35vw;
    width: 35vw;
  }
}

.contacts li:hover a {
  color: dimgray;
}