nav li a {
    text-decoration: none;
    display: block;
}

nav li a, nav li a:visited {
    color: #546e7a;
}

nav li:active {
    text-decoration: underline;
}
nav .subtitle {
    font-weight: normal;
    margin-left: 28px;
}
nav .subtitle:before {
    content: "\25B6 \FE0E";
    display: inline-block;
    vertical-align: middle;
    font-size: 8px;
    width: 14px;
    margin-left: -15px;
}
nav li a:before, nav li .tick:before {
    content: "\25B6 \FE0E";
    display: inline-block;
    color: #8c8c8c;
    font-size: 6px;
    margin-left: -10px;
    margin-right: 5px;
    vertical-align: middle;
    text-decoration: none;
}

#page-container nav {
    max-width: 560px;
    flex-shrink: 0;
    padding: 10px;
    background-color: #f2f2f2;
    border-right: 1px solid #e0e0e0;
    color: #333;
    flex-basis: 30%;
    position: relative;
}

@media (max-width: 597px) {
    #page-container nav {
        padding-top: 5px;
        max-width: 100%;
        border-right: none;
    }
}

#page-container nav a:hover {
    background-color: #e0e0e0;
    text-decoration: none;
}

main {
    padding-left: 15px;
    padding-right: 15px;
    padding-bottom: 15px;
    background-color: #f8f8f8;
}
main h1 {
    margin-top: 15px;
    margin-bottom: 30px;
    color: #444;
    font-size: 42px;
    font-weight: 400;
}