body {
  margin: 0px;
  padding: 0px;
  width: 100%;
  height: 100%;
  background-color: #495036;
  font-family: arial, helvetica, sans-serif;
}

.sidebar {
	grid-area: sidebar;
	background: #495036;
	text-decoration: none;
	padding: 5px;
	
}

.content {
	grid-area: content;
	background: #495036;
}

.header {
	grid-area: header;
	background: #495036;
	padding: 5px;
}

.footer {
	grid-area: footer;
	background: #495036;
	padding: 5px;
}


.wrapper {
	display: grid;
	grid-gap: 10px;
	grid-template-columns: 2fr 1fr 2fr;
	grid-template-areas:
	"header header header"
	"sidebar content content"
	"sidebar content content";
	background-color: #495036;
	color: white;
	padding: 15px;
}


.box {
  background-color: #444;
  color: #fff;
  border-radius: 5px;
  padding: 10px;
  font-size: 150%;
}

.footer {
  background-color: #495036;
  position:fixed; 
}