#myBtn {
  display: none; /* Hidden by default */
  position: fixed; /* Fixed/sticky position */
  bottom: 40px; /* Place the button at the bottom of the page og:20*/
  right: 14.5px; /* Place the button 0px from the right */
  z-index: 99; /* Make sure it does not overlap */
  border: none; /* Remove borders */
  outline: none; /* Remove outline */
  background-color: #0f0f0f; /* Set a background color */
  color: white; /* Text color */
  cursor: pointer; /* Add a mouse pointer on hover */
  padding: 15px; /* Some padding */
  border-radius: 40px; /* Rounded corners */
  font-size: 18px; /* Increase font size og:18*/
  width: 70px; /*og: 70*/
  height: 70px;
  text-align: center;
  /*-webkit-border-radius: 40px 0px 0px 40px;
  -moz-border-radius: 40px 0px 0px 40px; 
  border-radius: 40px 0px 0px 40px; */
  transition-duration: 0.4s;
}

#myBtn:hover {
  background-color: white; /* Add a color background on hover */
  color: black; /* Add a font color on hover */
  box-shadow: 0 12px 16px 0 rgba(0,0,0,0.24), 0 17px 50px 0 rgba(0,0,0,0.19);
}