#cards {
  padding-bottom: 40px;
}

#buttons {
  display: none;
  text-align: right;
  position: fixed;
  right: 10px;
  top: 10px;
}

#buttons * {
  float: right;
  clear: both;
}

#buttons button {
  display: none;
}

#buttons:hover button {
  display: block;
}

.add {
  border: 2px solid white;
  border-radius: 15px;
  width: 26px;
  text-align: center;
  font-size: x-large;
}