* {
	box-sizing: border-box;
}

body {
  background: #fff;
  min-height: 100vh;
  line-height: 1.4;
}

header {
	width: 8.00rem; /* 120px */
	padding: 13px;
	position: fixed;
	left: 0;
	top: 0;
	right: auto;
	bottom: 0;
	z-index: 100;
  font-size: 20px;
	background: #111;
	color: white;
	font-family: Arial, Helvetica, sans-serif;
  display: flex;                   /* defines flexbox */
  flex-direction: column;          /* top to bottom */
  justify-content: space-between;
}

nav {
  text-align: right;
}

nav a {
  color: white; 
}

#logo {
  width: 100%;
}

.cta-button {
  display: inline-block;
  margin-top: 8px;
  padding: 12px 18px;
  background: #111;
  color: white;
  border-radius: 5px;
  font-weight: 700;
  text-decoration: none;
}

.cta-button:hover,
.cta-button:focus {
  background: #2E3558;
}

main {
  display: block;
  min-height: 100vh;
  width: calc(100% - 7.500rem);
  margin-left: 7.500rem;
  padding: 30px;
  font-family: Arial, Helvetica, sans-serif;
  color: #2E3558;
  color: #111;
  text-align: left;
}

.code {
  background: rgb(233, 233, 233);
  padding: 10px;
  border: 1px solid rgb(211, 211, 211);
  border-radius: 5px;
}