mystyle.css

* {
	margin: 0em;
	padding: 0em;
}

*, *:before, *:after {
  box-sizing: border-box;
  transition: all 1s ease;
}

body {
  font-family: sans-serif;
	background: #99CCFF;
}

h1 { font-size: 240%; }
h2 { font-size: 150%; }
h3 { font-size: 125%; }

h1, h2, h3 {
  color: #444;
}

nav {
	background: salmon;
	padding: 1em;
	margin: 0em auto;
}

nav li {
	margin: 0.5em;
	padding: 0.5em;
	background: #F0FFF0;
	color: black;
	display: inline-block;
	list-style-type: none;
  border: solid black thin;
}

p {
	margin-top: 1em;
}

li {
	margin-top: 0.5em;
	margin-left: 2em;
}

header, article, footer {
	padding: 1em;
	max-width: 30em;
	margin: 0em auto;
}

header {
	background: hotpink;
}

main {
	background: mistyrose;
}


article {
	background: #FFFF77;
}

footer {
	background: forestgreen;
}

section {
	background: rgba(255,255,240,0.8);
	padding: 2em;
	margin: 1em 0em 0em 1em;
}

@media (max-width: 30em) {
  nav li {
    margin: 0.25em;
  	padding: 0.25em;
  	color: black;
  	display: block;
  }
  section {
  	background: rgba(255,255,240,0.8);
  	padding: 1em;
  	margin: 1em -1em -1em -1em;
  }
}