style.css

html {
  width: 100%;
  height: 100vh;
  background: white;
  font-size: 1.0em;
}
body {
  margin: 0;
  height: 100%;
  background-color: white;
}
div.container {

  background-color: white;
  display: grid;
  width: 100%;
  height: 100px;
  font-size: 35px;
}
div.header {
  background-color: white;
  grid-area: head;
  text-align: center;
  font-size: 3em;
}
div.footer {
  background-color: white;
  grid-area: foot;
}
div.panel {
  background-color: white;
}
div.panel.left {
  grid-area: panleft;
}
div.panel.right {
  grid-area: panright;
}
div.mainbody {
  grid-area: mainbody;
}



.navbar{
	overflow: hidden;
	background-color: black;
	font-family: Arial;
}

.navbar a{
	float: left;
	font-size: 16px;
	color: white;
	text-align: center;
	padding: 14px 16px;
	text-decoration: none;
}


.navbar a:hover, .dropdown:hover .dropbtn{
	background-color: #4364ae;
}

.logo img{
	width: 50%;
	padding-top: 10px;
	padding-bottom: 20px;
	height: auto;
	display: block;
	margin-left: auto;
	margin-right: auto;
}

.column{
	display: block;
	margin-left: 110px;
	margin-right: auto;
	float: left;
	width: 40%;
	padding-bottom: 50px;
	position: relative;
}

.row::after{
	content: "";
	clear: both;
	display: table;
}

.column .btn{
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	background-color: whitesmoke;
	color: #4364AE;
	font-size: 16px;
	padding: 12px 24px;
	border: none;
	cursor: pointer;
	border-radius: 5px;
}

.column .btn:hover{
	background-color: slategrey;
}