* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

::selection {
  background-color: white;
  color: #121212;
}

html {
  background-color: #121212;
  color: white;
}

body {
  width: 600px;
  margin: 0 auto;
  padding: 20px;
  font-family: Garamond, serif;
  font-size: 18px;
}

@media (max-width: 600px) {
  body {
    width: 100%;
  }
}

a {
  color: lightblue;
}

img {
  width: 100%;
}

footer {
  text-align: center;
}

ul li, ol li {
  margin-left: 20px;
}

details ul li, details ol li {
  margin-left: 40px;
}

textarea {
  resize: none;
  width: 100%;
  background-color: black;
  color: white;
  border: 1px solid white;
  border-radius: 5px;
  padding: 5px;
}

textarea::selection {
  background-color: white;
  color: black;
}