body {
  background-color: wheat;
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
}

.container {
  background-color: white;
  width: 90%;
  max-width: 400px;
  border-radius: 8px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 10px 0 rgba(0, 0, 0, 0.6);
  padding: 20px;
  box-sizing: border-box;
}

h1 {
  text-align: center;
  font-size: 24px;
}

#inputVal {
  display: block;
  width: 100%;
  padding: 10px;
  margin: 20px 0;
  outline: none;
  border: 2px dotted black;
  border-radius: 5px;
  font-size: 16px;
  box-sizing: border-box;
}

.btn {
  display: block;
  width: 100%;
  padding: 12px;
  margin: 10px 0;
  cursor: pointer;
  background-color: rgb(43, 209, 43);
  border: none;
  outline: none;
  color: white;
  border-radius: 5px;
  font-size: 18px;
  font-family: 'Times New Roman', Times, serif;
  box-sizing: border-box;
}

#image {
  display: block;
  width: 60%;
  margin: 20px auto;
  padding: 10px;
}

@media (min-width: 768px) {
  .container {
    width: 50%;
    max-width: 500px;
  }

  #inputVal {
    width: 90%;
    margin: 20px auto;
  }

  .btn {
    width: 90%;
    margin: 10px auto;
  }

  #image {
    width: 50%;
  }
}