.loading {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.5rem;
    font-weight: bold;
    text-align: center;
    color: #333;
    font-family: sans-serif;
}

body {
    font-family: 'Roboto', sans-serif;
}

ul.list-group {
    max-width: 600px;
    margin: auto;
    text-align: left;
}