     }

        .list-group a:nth-child(odd) {
            background: #f9f9f9;
        }

        /* check mark toggle */
        a.checked::before {
            /* make sure the correct font is used to have a more stylized version of this checkmark */
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
            content: "\2713";
            position: absolute;
 