header {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between; 
  padding: 1em 2em;
  height: 255px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-bottom: 2px solid #173842;
}


header::before {
  content: "Albrecht von Haller um 1736,  Ölgemälde  von Johann Rudolf Huber \A Privatbesitz, Burgerbibliothek Bern Porträtdok. 2762";
  position: absolute;
  bottom: -2.4em;       
  right: 1em;           
  padding: 0.3em 0.6em;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 0.85em;
  white-space: pre-line;
  text-align: center;
  border-radius: 3px;
  opacity: 0;
  transition: opacity 0.2s ease-in-out;
  pointer-events: none;
  z-index: 10;
}

header:hover::before {
  opacity: 1;
}

.media-embed img {
  max-width: 80%;  
  max-height: 450px; 
  width: auto;       
  height: auto;     
}

h1 {
  margin-top: 0px; 
  margin-bottom: 0px;  
}

h2 {
  margin-top: 0px; 
  margin-bottom: 0px;  
  font-size: 30px;
}


h4 {
  margin-top: 10px; 
  margin-bottom: 10px;  
}

h5 {
  margin-top: 10px; 
  margin-bottom: 10px;  
}

p {
  margin-top: 10px;  
  margin-bottom: 0; 
  text-align: justify;
}

ul {
  margin-top: 5px;
  margin-left: 5; 
  margin-bottom: 0px; 
}

a.site-title {
  display: none !important;
}

figcaption {
  font-size: 0.80em;
}

@media (max-width: 768px) {
  header {
    height: 400px;
    flex-direction: column;
    justify-content: center;
    text-align: center;
    padding: 1em;
  }