body {
    font-family: -apple-system,system-ui,BlinkMacSystemFont,"Segoe UI",Roboto,Ubuntu,"Helvetica Neue",sans-serif;
    font-size: 1rem;
    line-height: 1.5;
    font-style: normal;
    font-weight: 400;
    /*background-color: #ffca18;*/ /*#428bca;*/
    padding: 0px;
    margin: 0px;
}

.topnav {
    overflow: hidden;
    background-color: #333;
}

    .topnav a {
        float: left;
        display: block;
        color: #f2f2f2;
        /*color: #ffca18;*/
        text-align: center;
        padding: 14px 16px;
        text-decoration: none;
        font-size: 17px;
    }

        .topnav a:hover {
            /*background-color: #ddd;*/
            background-color: #ffca18;
            /*color: black;*/
            color: #333;
        }

        .topnav a.active {
            /*background-color: #04AA6D;*/
            background-color: #ffca18;
            color: white;
        }

    .topnav .icon {
        display: none;
    }

@media screen and (max-width: 600px) {
    .topnav a:not(:first-child) {
        display: none;
    }

    .topnav a.icon {
        float: right;
        display: block;
    }
}

@media screen and (max-width: 600px) {
    .topnav.responsive {
        position: relative;
    }

        .topnav.responsive .icon {
            position: absolute;
            right: 0;
            top: 0;
        }

        .topnav.responsive a {
            float: none;
            display: block;
            text-align: left;
        }
}