html,
body {
  width: 100%;
  height: 100%;
  background-color: #539898;
  margin:0;
  padding: 0;
}
* {
  font-family: 'Jost', sans-serif;
}
h1 {
  text-align: center;
  font-size: 6rem;
  color: white;
}
.qr-code {
  width: 100%;
  height: 100%;
  max-width: 400px;
  max-height: 400px;
  margin: 0 auto;
}
input {
  font-size: 3rem;
  background-color: transparent;
  border: none;
  border-bottom: 1px dashed white;
  color: white;
  width: calc(100% - 15px);
  margin: 5px;
}
input:focus {
  outline: none;
  border-bottom: 1px solid white;
}
input::placeholder {
  color: lightgray;
}
.code {
    position: relative;
}
button {
    position: absolute;
    top:4.5rem;
    left: -2rem;
    transform:rotate(-90deg);
}
textarea {
  font-family: 'Source Code Pro', monospace;
  box-sizing: border-box;
  width: calc(100% - 70px);
  height: 7rem;
  margin: 35px 35px;
  padding: 5px 20px;
  font-size: 1.5rem;
  color: white;
  opacity: 0.8;
  border:none;
  border-left: 1px solid white;
  background-color: transparent;
  outline: none;
}
pre {
  font-family: 'Source Code Pro', monospace;
  margin: 35px 30px;
  padding: 5px 20px;
  font-size: 1.5rem;
  color: white;
  opacity: 0.8;
  border-left: 1px solid white;
}
pre.info {
    font-size: 1rem;
}