.heading {
  width: 100%;
  margin: 60px auto 0;
  text-align: center;
  color: #fff;
}
h2.heading__title {
  margin: auto;
  font-size: 40px;
}

@media only screen and (max-width: 576px) {
  h2.heading__title {
    margin: auto;
    font-size: 8vw;
    line-height: auto;
  }
}

.heading__title-shift {
  display: none;
}
@media only screen and (max-width: 768px) {
  .heading__title-shift {
    display: block;
  }
}
.heading__title-sub {
  margin: 1.5em auto 0;
  line-height: 1.6;
  font-size: 20px;
}

@media only screen and (max-width: 768px) {
  .heading__title-sub {
    font-size: 16px;
  }
}