html, body {
  height: 100%;
  margin: 0;
}

#header {
	height: 50px;
	background-color: #000080;
	color: white !important;
	line-height: 50px;
	padding-left: 10px;
	font-size: 18px;
	font-family: arial;
    text-align: center;
}

#map {
    height: calc(100vh - 70px);
    width: 100%;
    float: left;
}

#footer {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 20px;
    background-color: #000080;
}