/* Button  um nach oben zu springen */

#myBtn {
  display: none; /* Hidden by default */
  position: fixed; /* Fixed/sticky position */
  bottom: 0.2em; 
  z-index: 99; /* Make sure it does not overlap */
  border: none; /* Remove borders */
  outline: none; /* Remove outline */
  background-color:  grey; /* Set a background color */
  cursor: pointer; /* Add a mouse pointer on hover */
  padding:  .75em; /* Some padding */
  margin-left: 0.4em;
  border-radius: .5em; /* Rounded corners */
  color: white; /* Text color */
  font-size: 0.8em; /* Increase font size */ 
}

#myBtn:hover {
  background-color: #555; /* Add a dark-grey background on hover */
}