*,
*:before,
*:after {
  box-sizing: border-box;
}
h1 {
  font-size: 2em;
}
h2 {
  font-size: 1.5em;
}
h1,
h2 {
  font-weight: bold;
  margin: 5px 0px;
}
p {
  font-size: 1em;
  margin: 5px 0px;
}
ul {
  padding-left: 10px;
  margin: 10px 0px;
  list-style-type: disc;
}
li {
  margin-left: 10px;
  padding-left: 10px;
}
header,
article,
aside,
footer {
  border: 1px solid #111111;
  padding: 10px 1em;
  margin: 0 5% 10px;
}
header {
  margin-top: 10px;
}