body {
  color: #333;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
}

.card {
  padding: 50px;
  border-radius: 10px;
  border: 2px solid #d3d3d3;
  box-shadow: 5px 5px 5px 0px rgba(211, 211, 211, 0.75);
}

.loading {
  padding: 0;
  display: flex;
  justify-content: center;
  margin: 50px;
}

button,
.btn {
  padding: 10px;
  color: #fff;
  background-color: #23837f;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  margin: 5px 0;
}

button:hover,
.btn:hover {
  background-color: #0e3d3c;
}

button:active,
.btn:active {
  transform: scale(0.9);
}