:root {
  --text-color: black;
  --background-color: white;
}

html {
  font-size: 14px;
  background-color: var(--background-color);
  color: var(--text-color);
}

* { 
  padding: 0;
  margin: 0;
  font-weight: normal;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
}

h1 {
  font-size: 1.5em;
}

ol, ul {
  list-style: none;
}
html { 
  height: 100%;
}
body {
  display: flex;
  flex-direction: column;
  height: 100%;
	max-width: 700px;
  margin-right: auto;
	margin-left: auto;
}

h1 a,
h2 a,
h3 a,
h4 a {
  color: black;
  text-decoration: none;
}

h1 a:hover,
h2 a:hover,
h3 a:hover,
h4 a:hover {
  text-decoration: underline;
}