.u-section-1 {
  background-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.2)), url('images/konehuone_12.jpg');
  background-position: 50% 50%;
  background-repeat: no-repeat;
  background-size: cover, cover;
}

.u-section-1 .u-sheet-1 {
  min-height: 755px;
}

.u-section-1 .u-audio-1 {
  width: 400px;
  height: 110px;
  margin: 111px auto 0;
}

.u-section-1 .u-audio-2 {
  width: 400px;
  height: 110px;
  margin: 21px auto 60px;
}

@media (max-width: 1199px) {
  .u-section-1 .u-sheet-1 {
    min-height: 623px;
  }
}

@media (max-width: 991px) {
  .u-section-1 .u-sheet-1 {
    min-height: 477px;
  }
}

@media (max-width: 767px) {
  .u-section-1 .u-sheet-1 {
    min-height: 358px;
  }
}

@media (max-width: 575px) {
  .u-section-1 .u-sheet-1 {
    min-height: 225px;
  }

  .u-section-1 .u-audio-1 {
    width: 340px;
  }

  .u-section-1 .u-audio-2 {
    width: 340px;
  }
}