POIMap/extra/style.css

#map { 
    height: 100vh; 
    width: 100%; 
    vertical-align: middle; 
    margin-left: auto; margin-right: auto;
    padding: 0;
}

#sidebar {
    position: absolute;
    width:10%;
    height:10%;
    visibility: collapse;
    overflow: hidden;

}

body {
    height: 100%;
    width: 100%;
    padding:0;
    margin:0;
}