@media only screen and (max-width: 768px) {
  .header {
    height: 40%;
  }
  .header .sliderall .slider li h1,
  .header .sliderall .slider li h3 {
    font-size: 20px;
  }
  .home-about .about-content {
    flex-direction: column;
    width: 90%;
  }
  .home-contents .wrapper {
    padding: 15px 0 15px 0;
  }
}