body {
    font: 12px Arial, Helvetica, sans-serif;
    color: #333333;
}
a, a:visited {
    color: #333333;
    text-decoration: none;
    cursor: pointer;
}
a:hover, a:focus, a:active {
    text-decoration: none;
    color: #999999;
}
ul {
    text-decoration: none;
    list-style: none;
    padding: 0;
    margin: 0;
}
.hidden {
    display: none;
}


header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.burger-menu-icon:hover, .burger-menu-icon:focus {
    opacity: 0.4;
    cursor: pointer;
}

nav {
    max-width: 50%;
    height: 100%;
    background-color: #f5f5f5;
    position: fixed;
    top: 0;
    left: 0;
    padding: 8px;
    display: none;
}
nav.show {
    display: block;
}

    nav li ul {
        padding: 4px 0 8px 24px;
    }
    nav li {
        margin-bottom: 4px;
    }

footer {
    margin: 24px 0;
    display: flex;
    justify-content: space-evenly
}

.image img {
    width: 100%;
}
.image p {
    margin: 0;
    font-size: 10px;
}

h2 {
    font-size: 14px;
    font-variant: small-caps;
    margin: 0;	
}
.description {
    margin-top: 0;
}
main {
    text-align: justify;
    font-size: 12px;
}
.folder li {
    margin-bottom: 16px;
}

@media screen and (min-device-width: 768px) {
    body {
        margin-left: 40px;
    }

    .burger-menu-icon {
        display: none;
    }
    nav {
        display: block;
        position: relative;
        width: 240px;
        float: left;
        background-color: transparent;
    }
    main {
        width: fit-content;
        float: left;
        margin-left: 24px;    
        /*max-width: calc(100% - 320px);*/
        max-width: 633px;
    }
    .image {
        width: fit-content;
    }
    footer {
        width: 100%;
        float: left;
        clear: both;
    }
}