body {
  background-color: black;
  color: white;
  text-align: center;
  font-family: Lato;
  height: 100vh;
  padding: 1px;
}

section {
  display: flex;
  align-items: center;
  /* justify-content: center; */
  flex-direction: column;
}

.demo-wrap {
  width: 260px;
  height: 200px;
  border: 1px solid white;
  /* box-shadow: 0 0 6px 0 rgba(255, 255, 255, .4); */
}

aside {
  margin-top: 32px;
}

button {
  font-size: 16px;
  padding: 0.5em 1em;
  background-color: black;
  border: 1px solid white;
  color: white;
  margin: 4px;
  cursor: pointer;
  outline: none;
}

a:visited {
  color: white;
}