.add-button {
  display: inline-block;
  border-radius: 20px;
  border: none;
  color: #FFFFFF;
  text-align: center;
  font-size: 20px;
  padding: 9px;
  width: 200px;
  transition: all 0.5s;
  cursor: pointer;
  margin-left: 50px;
  margin-top: 5px;
  background: linear-gradient(to bottom, rgb(237 116 47) 23%, rgb(196 62 9) 97%);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.34) inset, 0 2px 0 -1px rgba(0, 0, 0, 0.13), 0 3px 0 -1px rgba(0, 0, 0, 0.08), 0 3px 13px -1px rgba(0, 0, 0, 0.21);
}

.add-button span {
  cursor: pointer;
  display: inline-block;
  position: relative;
  transition: 0.5s;
  text-shadow: 1px 1px 1px #000000;
}