* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  padding: 0;
  margin: 0;
  font-family: monospace;
  font-size: 1rem;
  line-height: 1.5rem;
}

a {
  color: lightseagreen;
}

.main a {
  background: #EEEEEE;
  padding: 0.1rem 0.3rem;
  border-radius: 5px;
  transition: .3s ease all;
}

.main a:hover {
  opacity: 0.5;
}

a.external:after {
  content: '';
  height: 0.8rem;
  width: 0.8rem;
  display: inline-block;
  background-image: url('./assets/external.svg');
  backgroud-size: 0.8rem;
  margin: 0 0 0 0.2rem;
}

.header {
  width: 800px;
  margin: 0 auto;
  padding: 6rem 0 2rem 0;
}

.header .logo {
  font-size: 1.5rem;
  margin: 0;
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.header .logo a {
  color: #000000;
  text-decoration: none;
}

.header .logo img {
  height: 2rem;
  width: 2rem;
}

.main {
  width: 800px;
  margin: 0 auto;
}

.main pre {
  white-space: break-spaces;
}

.footer {
  padding: 2rem 0;
  width: 800px;
  margin: 0 auto;
}