body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #393838;
}

header {
    background-color: lightgreen;
    color: white;
    text-align: center;
    padding: 20px;
}


nav {
    background-color: #414141;
}


nav a {
    display: block;
    color: white;
    padding: 12px;
    text-align: center;
}

nav a:hover {
    background-color: #555;
}


.story {
    background-color: white;
    margin-bottom: 20px;
    padding: 10px;
    border: 1px solid #e2dfdf;
}

.story h2 {
    margin-top: 0;
}

.story img {
    width: 100%;
    height: auto;
    display: block;
    margin-bottom: 10px;
}

/* 576px and up */
@media (min-width: 576px) {
    body {
        background-color: #e8ecef;
    }

    nav li {
        display: inline-block;
        width: 49%;
        border-bottom: none;
    }

    .story img {
        width: 80%;
        margin-left: auto;
        margin-right: auto;
    }
}

/* 720px and up */
@media (min-width: 720px) {
    header {
        padding: 30px;
    }

    .story {
        overflow: auto;
    }

    .story img {
        float: left;
        width: 40%;
        margin-right: 15px;
        margin-bottom: 10px;
    }

    .story p {
        font-size: 17px;
        line-height: 1.6;
    }
}

/* 992px and up */
@media (min-width: 992px) {
    main {
        width: 90%;
        margin: 0 auto;
    }

    #story1,
    #story2 {
        width: 47%;
        float: left;
        margin: 1%;
        min-height: 420px;
    }

    nav {
        position: sticky;
        top: 0;
    }


}