@media screen and (max-width: 550px) {
  body section.header .header-slider li {
    font-size: 22px;
    padding: 10px 0;
  }
  body section.header .top-button {
    margin-top: 5px;
  }
  body main.main section.modul.simple-text .content {
    width: 100%;
  }
  body main.main section.modul h1 {
    width: 100%;
  }
  body main.main section.modul.blocks .one-block {
    width: calc(100% - 30px) !important;
  }
}