.how-to-use-main {
  background-color: var(--tt-grey-color);
}

.how-to-use-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  align-items: flex-start;
}

.how-to-use-box {
  width: calc(50% - 15px);
}

@media only screen and (max-width: 900px) {
  .how-to-use-box {
    width: 100%;
  }
}