.main-content {
  height: 100%;
  width: 100%;
  position: absolute;
}
.list-topics {
  display: flex;
  justify-content: space-around;
  align-items: center;
  margin-top: 20px;
  position: absolute;
  width: 100%;
  top: calc(50% - 100px);
  transform: translateY(-50%);
}
.list-topics .topic img {
  width: 300px;
}

@media only screen and (min-width: 768px) and (max-width: 1080px) {
  .container {
    padding: 0 10px;
  }

  .list-topics {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin-top: 20px;
    height: fit-content;
    gap: 20px;
    width: 100%;
  }
}

@media only screen and (max-width: 768px) {
  .list-topics {
    position: static;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    transform: unset;
  }
  .list-topics .topic img {
    width: 50%;
  }
}