.is-tab {
    display: none;
}
@media screen and (max-width: 900px) and (min-width: 520px) {
    .is-tab {
        display: block;
    }
}
.l-mv__body {
    right: 170px;
}
@media screen and (max-width: 900px) {
  .l-mv__body {
    right: 120px;
  }
}
@media screen and (max-width: 900px) {
  .l-mv__body {
    right: 0px;
  }
}