.topnav {
    background-color: lightblue;
    border: 1px solid black;
    padding: 0 15%;
    overflow: hidden;
}

.topnav a {
    float: left;
    display: block;
    color: black;
    text-align: center;
    padding: 14px 36px;
    text-decoration: none;
    font-size: 20px;
}

.topnav a:hover {
    color: gray;
}

.topnav a.active {
    background-color: #39b2c7;
    color: white;
}

.topnav .icon {
    display: none;
}

@media screen and (max-width: 1153px) {
    .topnav a {
        padding: 14px 26px;
    }
}

@media screen and (max-width: 1038px) {
    .topnav a {
        padding: 14px 16px;
    }
}

@media screen and (max-width: 924px) {
    .topnav a:not(:first-child) {
        display: none;
    }

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

@media screen and (max-width: 924px) {
    .topnav.responsive {
        position: relative;
    }

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

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