.u-section-1 .u-sheet-1 {
  min-height: 531px;
}

.u-section-1 .u-text-1 {
  width: 680px;
  margin: 9px auto 0;
}

.u-section-1 .u-text-2 {
  width: 680px;
  font-size: 1rem;
  margin: 20px auto 0;
}

.u-section-1 .u-video-1 {
  height: 360px;
  width: 640px;
  margin: 20px auto 0;
}

.u-section-1 .embed-responsive-1 {
  position: absolute;
  width: 100%;
  left: 0;
  height: 100%;
  top: 0;
}

.u-section-1 .u-video-poster-1 {
  background-image: url("images/A15DichtigkeitLueftung.png");
  width: 100%;
  left: 0;
  height: 100%;
  top: 0;
}

@media (max-width: 1199px) {
  .u-section-1 .u-sheet-1 {
    min-height: 536px;
  }

  .u-section-1 .u-video-poster-1 {
    left: 0;
    top: 0;
  }
}

@media (max-width: 767px) {
  .u-section-1 .u-sheet-1 {
    min-height: 474px;
  }

  .u-section-1 .u-text-1 {
    width: 540px;
  }

  .u-section-1 .u-text-2 {
    width: 540px;
  }

  .u-section-1 .u-video-1 {
    height: 303px;
    margin-right: initial;
    margin-left: initial;
    width: auto;
  }
}

@media (max-width: 575px) {
  .u-section-1 .u-sheet-1 {
    min-height: 421px;
  }

  .u-section-1 .u-text-1 {
    margin-left: 0;
    margin-right: 0;
    width: 340px;
  }

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

  .u-section-1 .u-video-1 {
    height: 195px;
    width: auto;
    margin-right: initial;
    margin-left: initial;
  }
}.u-section-2 .u-sheet-1 {
  min-height: 422px;
}

.u-section-2 .u-text-1 {
  width: 680px;
  margin: 16px auto 0;
}

.u-section-2 .u-text-2 {
  width: 680px;
  font-size: 1rem;
  margin: 20px auto 0;
}

.u-section-2 .u-btn-1 {
  background-image: none;
  border-style: none none solid;
  font-size: 1rem;
  font-weight: 700;
  margin: 20px 230px 0 auto;
  padding: 0;
}

.u-section-2 .u-btn-2 {
  background-image: none;
  border-style: none none solid;
  font-weight: 700;
  font-size: 1rem;
  margin: 20px 230px 20px auto;
  padding: 0;
}

@media (max-width: 1199px) {
  .u-section-2 .u-sheet-1 {
    min-height: 378px;
  }

  .u-section-2 .u-text-1 {
    margin-top: 14px;
  }

  .u-section-2 .u-text-2 {
    width: 838px;
  }

  .u-section-2 .u-btn-1 {
    margin-top: 22px;
    margin-right: 51px;
  }

  .u-section-2 .u-btn-2 {
    margin-top: 18px;
    margin-right: 51px;
    margin-bottom: 22px;
  }
}

@media (max-width: 991px) {
  .u-section-2 .u-text-2 {
    width: 720px;
  }

  .u-section-2 .u-btn-1 {
    margin-right: 0;
  }

  .u-section-2 .u-btn-2 {
    height: 24px;
    margin-right: 0;
  }
}

@media (max-width: 767px) {
  .u-section-2 .u-text-1 {
    width: 540px;
  }

  .u-section-2 .u-text-2 {
    width: 540px;
  }
}

@media (max-width: 575px) {
  .u-section-2 .u-sheet-1 {
    min-height: 549px;
  }

  .u-section-2 .u-text-1 {
    margin-top: 20px;
    margin-left: 0;
    margin-right: 0;
    width: 340px;
  }

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