.u-section-1 {
  background-image: linear-gradient(0deg, rgba(0,0,0,0.55), rgba(0,0,0,0.55)), url("images/fff.jpg");
  background-position: 50% 50%;
}

.u-section-1 .u-sheet-1 {
  min-height: 965px;
}

@media (max-width: 1199px) {
  .u-section-1 .u-sheet-1 {
    min-height: 796px;
  }
}

@media (max-width: 991px) {
  .u-section-1 .u-sheet-1 {
    min-height: 610px;
  }
}

@media (max-width: 767px) {
  .u-section-1 .u-sheet-1 {
    min-height: 458px;
  }
}

@media (max-width: 575px) {
  .u-section-1 .u-sheet-1 {
    min-height: 288px;
  }
}