#promoEW {
  text-align:center;
  padding:40px;
  background:url(../../assets/img/Fotolia_PCB1_L.jpg) no-repeat center;
  background-size:cover;
}

#promoZert {
  text-align:center;
  padding:40px;
  background:url(../../assets/img/Prozesse.jpg) no-repeat center;
  background-size:cover;
}

#promoFert {
  text-align:center;
  padding:40px;
  background:url(../../assets/img/Fertigung_Pcb.jpg) no-repeat center;
  background-size:cover;
}

#promoUeber {
  text-align:center;
  padding:40px;
  background:url(../../assets/img/2017.jpg) no-repeat center;
  background-size:cover;
}

#promoRef {
  text-align:center;
  padding:40px;
  background:url(../../assets/img/Maennchen.jpg) no-repeat center;
  background-size:cover;
}

#promo {
  text-align:center;
  padding:40px;
  background:url(../../assets/img/Pcb2_L.jpg) no-repeat center;
  background-size:cover;
}

#promo {
  padding:20px;
}

#promo .jumbotron {
  border-radius:10px;
  padding:40px;
  background-color:rgba(255,255,255,0.75);
  max-width:800px;
  margin:0 auto;
}

#promoEW .jumbotron {
  border-radius:10px;
  padding:40px;
  background-color:rgba(255,255,255,0.75);
  max-width:800px;
  margin:0 auto;
}

#promoZert .jumbotron {
  border-radius:10px;
  padding:40px;
  background-color:rgba(255,255,255,0.75);
  max-width:800px;
  margin:0 auto;
}

#promoFert .jumbotron {
  border-radius:10px;
  padding:40px;
  background-color:rgba(255,255,255,0.75);
  max-width:800px;
  margin:0 auto;
}

#promoUeber .jumbotron {
  border-radius:10px;
  padding:40px;
  background-color:rgba(255,255,255,0.75);
  max-width:800px;
  margin:0 auto;
}

#promoRef .jumbotron {
  border-radius:10px;
  padding:40px;
  background-color:rgba(255,255,255,0.75);
  max-width:800px;
  margin:0 auto;
}

@media (max-width: 1199px) {
  #promo .jumbotron {
    padding:20px;
  }
}

@media (min-width: 992px) {
  .col-md-3 {
    width:33%;
  }
}