.picture {
  position: relative;
  width: 150px;
  height: 150px;
  border-radius: 100px;
  border: 0.5rem solid white;
  background-image: url(../assets/avatar.jpg);
  background-size: cover;
  margin-left: auto;
  margin-right: 10%;
  margin-top: -5rem;
  z-index: 2;
}
@media only screen and (max-width: 600px) {
  .picture {
    width: 100px !important;
    height: 100px !important;
    border: 0.3rem solid white !important;
    margin-top: -4rem;
  }
}