header{
  background: #FF9E29 url(../assets/Kolping_Gestaltungselement_B.jpg) no-repeat center center;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}

header a{
  color: inherit;
  text-decoration: underline;
}

header .decorative-curve{
  width: 100%;
  height: auto;
  margin-top: -25px;
}

.impressions{
  text-align: center;
}

.impressions img{
  max-width: 100%;
  margin: 5px;
}