html, body {
  margin: 0;
  padding: 0;
}

body {
  background: #222;
}

header {
  display: none;
}

p {
  margin: 0;
  padding: 0;
}

main {
  position: relative;
  width: 95%;
  max-width: 825px;
  margin: auto;
}

canvas {
  display: block;
  margin: 10px auto;
  border-radius: 5%;
  height: inherit;
  width: inherit;
  max-width: 100%;
}

input {
  position: absolute;
  left: 37%;
  top: 50%;
  font-family: Monoton;
  font-size: 10vw;
  outline: none;
  border: none;
  background: rgba(0, 0, 0, 0);
  color: orange;
} 

.hidden {
  display: none;
}

footer {
  width: 90%;
  max-width: 800px;
  border-radius: 5px;
  background: #ddd;
  border: 5px double #333;
  margin: auto;
  font: 14px sans-serif;
}

.instructions {
  width: 50%;
  height: 100%;
  border-right: 5px black double;
}

footer span {
  font-weight: 600;
}

.credits {
  width: 50%;
  text-align: right;
  float: right;
  padding-right: 2px;
  font-size: 9px;
}

button {
  display: block;
  background: black;
  margin: 5px auto;
  border-radius: 5px;
  border: 1px solid red;
  padding: 5px;
}

button a {
  color: red;
  text-decoration: none;
  font-size: 1rem;
  padding: 5px;
}

@media screen and (max-width: 470px) {
  .instructions {
    font-size: 12px;
  }
  .credits {
    font-size: 8px;
  }
}