styles.css

 body {
     font-family: "Roboto";
     font-size: 4em;
     margin: 0;
     padding: 0;
 }

 /*when button is click on */
.on {
    color: orange;
}

/*info box style (for bus list)*/
#infobox {
    background: white;
    height: fit-content;
    width: fit-content;
    font-size: 12pt;
    color: orange;
    font-weight: bold;
    border-radius: 15px;
    padding: 10px;
    margin: 10px;
    position: relative;
    top: 10px;
    left: 10px
}

button {
    background: white;
    height: 2em;
    font-size: 22pt;
    color: slategrey;
    font-weight: bold;
    border-radius: 15px;
    border-color: dodgerblue;
    position: relative;
    top: 20px;
    left: 20px
}

/*mapbox styles */
#map {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 100%;
}

.marker {
    background-image: url('assets/bus-icon.png');
    background-size: cover;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
}
.mapboxgl-popup-close-button {
    display: none;
}
.mapboxgl-popup-content {
    background: white;
    font-weight: bold;
    width: 2em;
    height: 1em;
}
.mapboxgl-popup-content-wrapper {
    padding: 1%;
}