table, th, td {
  border: 1px solid black;
  border-collapse: collapse;
}

#myBtn {
  display: none;
  position: fixed;
  bottom: 0px;
  right: 0px;
  z-index: 99;
  font-size: 18px;
  border: none;
  outline: none;
  background-color: red;
  color: white;
  cursor: pointer;
  padding: 5px;
  border-radius: 4px;
}

#myBtn:hover {
  background-color: #555;
}

.button { background-color: #1c87c9; border: none; color: white; padding: 20px 34px; text-align: center; text-decoration: none; display: inline-block; font-size: 20px; margin: 4px 2px; cursor: pointer; }