body,
html {
  margin: 0;
}

html {
  height: 100%;
}

body {
  height: inherit;
  overflow: hidden;
  max-width: 800px;
  margin: 0 auto;
}

h1,
p {
  font-family: sans-serif;
  text-align: center;
  padding: 20px;
}

div {
  height: 100px;
  overflow: auto;
  position: absolute;
  bottom: 0px;
  right: 0;
  left: 0;
  background-color: rgba(255, 255, 255, 0.2);
}

ul {
  margin: 0;
}

.hints span {
  text-shadow: 0px 0px 6px rgba(255, 255, 255, 0.7);
}

button {
  display: block;
  margin: 0 auto;
}