* {
  margin: 0;
  padding: 0;
}
.main-section {
  text-align: center;
}
img {
  width: 50%;
  display: block;
  vertical-align: bottom;
  margin: 0 auto;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}
@media screen and (max-width: 896px) {
  img {
    width: 80%;
  }
}
@media screen and (max-width: 480px) {
  img {
    width: 100%;
  }
}