body {
  padding: 0;
  margin: 0;
  min-height: 100vh;
  font-family: arial, sans-serif;
}
@media(max-width: 400px) {
  body {
  	padding: 10px;
  }
}
.full-height {
  min-height: 100vh;
}
.flex-center {
	align-items: center;
	display: flex;
	justify-content: center;
}
.content {
  max-width: 400px;
}
h2 {
  text-align: center;
}
.code, textarea {
  font-family: "Courier New", "Courier", monospace;
  width: 100%;
  padding: 4px;
  border: 1px #ccc solid;
  border-radius: 4px;
}