styles.css

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

#map {
    width: 100%;
    height: 100%;
}


#menu-bar {
    background-color: #333;
    color: white;
    padding: 10px 0;
    text-align: center;
}

#menu-bar ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

#menu-bar li {
    display: inline;
    margin: 0 15px;
}

#menu-bar a {
    text-decoration: none;
    color: white;
}

.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 1000;
}

.overlay-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: white;
    padding: 20px;
    border-radius: 5px;
}

.close-button {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 18px;
    text-decoration: none;
    color: black;
}

.ol-popup {
    position: absolute;
    background-color: white;
    box-shadow: 0 1px 4px rgba(0,0,0,0.2);
    padding: 15px;
    border-radius: 10px;
    border: 1px solid #ccc;
}

.ol-popup-closer {
    position: absolute;
    top: 5px;
    right: 5px;
    font-size: 14px;
    font-weight: bold;
    text-decoration: none;
    color: #333;
}