#app img {
  display: block;
  margin: 0 auto;
  max-width: 100%;
}
.pc p,
.mobile p {
  margin: unset;
}
.pc {

}
.mobile {
  display: none;
}
.mobile img {
  width: 100%;
  height: unset;
  object-fit: contain;
}
@media screen and (max-width: 720px) {
  .pc {
    display: none;
  }
  .mobile {
    display: block;
  }
}