html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    width: 100%;
  }
  #map {
    height: 100%;
    width: 100%;
  }
  #header{
    margin-left:10px;
    display:flex;
    justify-content: space-around;
  }
  #footer{
    display: center;
  }