.u-section-1 {
  background-image: url("images/Air-polution.jpg");
  background-position: 50% 50%;
}

.u-section-1 .u-sheet-1 {
  min-height: 481px;
}

@media (max-width: 1199px) {
  .u-section-1 .u-sheet-1 {
    min-height: 397px;
  }
}

@media (max-width: 991px) {
  .u-section-1 .u-sheet-1 {
    min-height: 304px;
  }
}

@media (max-width: 767px) {
  .u-section-1 .u-sheet-1 {
    min-height: 228px;
  }
}

@media (max-width: 575px) {
  .u-section-1 .u-sheet-1 {
    min-height: 144px;
  }
}.u-section-2 .u-sheet-1 {
  min-height: 1733px;
}

.u-section-2 .u-text-1 {
  font-weight: 700;
  font-size: 1rem;
  margin: 0 auto 0 0;
}

.u-section-2 .u-image-1 {
  width: 301px;
  height: 135px;
  margin: 0 auto 0 0;
}

.u-section-2 .u-text-2 {
  margin: -127px 0 0 318px;
}

.u-section-2 .u-text-3 {
  font-size: 1rem;
  margin: 34px 0 0;
}

.u-section-2 .u-btn-1 {
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 1px;
  background-image: none;
  margin: 10px auto 0 0;
}

@media (max-width: 1199px) {
  .u-section-2 .u-sheet-1 {
    min-height: 1868px;
  }

  .u-section-2 .u-text-2 {
    margin-top: 20px;
    margin-left: 218px;
    margin-bottom: initial;
  }
}

@media (max-width: 991px) {
  .u-section-2 .u-sheet-1 {
    min-height: 2362px;
  }

  .u-section-2 .u-image-1 {
    margin-top: 20px;
    margin-bottom: initial;
  }

  .u-section-2 .u-text-2 {
    margin-bottom: 0;
    margin-left: 0;
  }
}

@media (max-width: 767px) {
  .u-section-2 .u-sheet-1 {
    min-height: 2746px;
  }

  .u-section-2 .u-text-1 {
    margin-top: 60px;
  }

  .u-section-2 .u-image-1 {
    margin-bottom: 0;
  }
}

@media (max-width: 575px) {
  .u-section-2 .u-sheet-1 {
    min-height: 3426px;
  }

  .u-section-2 .u-text-1 {
    width: auto;
    margin-top: 1px;
  }

  .u-section-2 .u-image-1 {
    margin-top: 6px;
  }

  .u-section-2 .u-text-2 {
    width: auto;
    margin-top: 16px;
  }

  .u-section-2 .u-text-3 {
    width: auto;
    margin-top: 25px;
  }

  .u-section-2 .u-btn-1 {
    margin-top: 0;
    margin-bottom: 1px;
  }
}