.zurueck {
  background-color : silver;
  color: white;
  padding: 5px 5px;
  border-radius: 4px;
   border: solid 3px green;
  font-family: monospace;
  font-size: 18px;

}

#mybutton-winter {
  position: fixed;
  bottom: 200px;
 left: 2px;
}
#mybutton-winter a {
  color: white;
    text-decoration: none;
    font-style: normal;
}
#mybutton-winter a:hover,
#mybutton-winter a:focus {
	color:maroon;
    font-style: italic;
}

#mybutton-winter1 {
  position: fixed;
  bottom: 10px;
 left: 2px;
}
#mybutton-winter1 a {
  color: white;
    text-decoration: none;
    font-style: normal;
}
#mybutton-winter1 a:hover,
#mybutton-winter1 a:focus {
	color:maroon;
    font-style: italic;
}

#mybutton-sommer {
  position: fixed;
  bottom: 200px;
 left: 2px;
}
#mybutton-sommer a {
  color: white;
    text-decoration: none;
    font-style: normal;
}
#mybutton-sommer a:hover,
#mybutton-sommer a:focus {
	color:maroon;
    font-style: italic;
}

#mybutton-sommer1 {
  position: fixed;
  bottom: 160px;
 left: 2px;
}
#mybutton-sommer1 a {
  color: white;
    text-decoration: none;
    font-style: normal;
}
#mybutton-sommer1 a:hover,
#mybutton-sommer1 a:focus {
	color:maroon;
    font-style: italic;
}

#mybutton-bauwerke {
  position: fixed;
  bottom: 10px;
 left: 2px;
}
#mybutton-bauwerke a {
  color: white;
    text-decoration: none;
    font-style: normal;
}
#mybutton-bauwerke a:hover,
#mybutton-bauwerke a:focus {
	color:maroon;
    font-style: italic;
}