* {
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
         box-sizeing: border-box;
}

body {
  background: #f5f5f5;
  width: 960px;
  margin: 20px auto;
}

header {
  background-image: url(http://intro-webdesign.com/CSS/assignment-2/images/flywheel.jpg);
  padding: 10px;
}

h1 {
  text-align: center;
  text-transform: uppercase;
  color: #fff;
}

nav {
  margin: 30px;
}

nav a {
  background-color: rgba(255, 255, 255, 0.3);
  text-decoration: none;
  text-align: center;
  color: #000;
  margin: 20px;
  padding: 10px 50px;
  border-radius: 5px;
}

.active {
  background-color: #ffffff;
}

main {
  margin-top: -20px;
}

.left {
  background-color: #33691E;
  display: block;
  float: left;
  width: 200px;
  height: 100vh;
}

img {
  margin: 20px 20px 0px 20px;
  width: 160px;
  height: 100px;
  border: 2px solid #000;
}

.right {
  padding-left: 205px;
}

h2 {
  padding-top: 20px;
}

table {
	font-size: 12px;
	width: 75%;
	margin: 0 auto;
	border-collapse: collapse;
	background: #98FB98;
  color: #000;
}

th { 
	border-radius: 5px 5px 0 0;
	background: #558B2F;
	font-size: 14px;
	font-family: Arial;
  padding: 10px;
}

th, td {
  border: 2px solid #ffffff;
}

th:nth-child(3n+1),
td:nth-child(3n+1) {
	text-align: left;
}

td:nth-child(3n+2) {
	text-align: center;
}

tr {
  background-color: #C5E1A5;
	opacity: 0.8;
}

tr:hover {
  border-radius: 5px 5px 0 0;
	opacity: 1;
}

td {
overflow: hidden;
color: #696969;
font-family: Arial, Helvetica;
font-style: normal;
padding: 2%;
}