.social-media-icons {
  display: flex;
  flex-wrap: wrap;
  max-width: 400px;
  margin: 0 auto;
}

.social-media-icons a {
  display: inline-block;
  width: 50px;
  height: 50px;
  margin: 5px;
  text-align: center;
  line-height: 50px;
  font-size: 20px;
}

@media screen and (max-width: 480px) {
  .social-media-icons a {
    width: 40px;
    height: 40px;
    line-height: 40px;
    font-size: 16px;
  }
}