body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  padding: 60px 20px;
  text-align: center;
  background: linear-gradient(to right, lightgreen, lightblue);
  box-sizing: border-box;
  margin: 0;
}

.container {
  padding: 30px;
  border: none;
  border-radius: 30px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.9);
  width: 90%;
  max-width: 400px;
  margin: auto;
  background-color: white;
}

button {
  font-size: 2rem;
  padding: 12px 30px;
  border: none;
  border-radius: 40px;
  cursor: pointer;
  background-color: cornflowerblue;
  width: 100%;
  box-sizing: border-box;
  transition: transform 0.2s ease;
  color: white;
}

button:active {
  transform: scale(1.3);
}

@media (max-width: 750px) {
  button {
    font-size: 2rem;
    padding: 12px 20px;
  }

  .container {
    width: 60%;
  }
}