body {
  font-family: sans-serif;
  background: #f0f0f0;
  text-align: center;
  padding: 20px;
}
.container {
  background: #fff;
  padding: 30px;
  display: inline-block;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
.options {
  margin: 20px 0;
}
input, select, button {
  margin: 10px;
  padding: 10px;
}
button {
  cursor: pointer;
}