* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: sans-serif;
    color: #4d4e53;
    line-height: 1.5;
    scroll-behavior: smooth;
}


header {
    color: black;
}

code {
    font-family: monospace;
    background-color: #f7f7f7;
    padding: 15px;
    line-height: 2;
    display: block;
    margin: 15px;
    border-radius: 5px;
}

article {
    margin-left: 25px;
    font-size: 1.1em;
}


#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 22%;
    height: 100%;
    border-right: solid;
    border-color: #b3b5b6;
    overflow-y: auto;
}

#navbar > header {
    position: sticky;
    top: 0;
    text-align: center;
    background-color: white;
    padding: 20px;
    font-size: 2em;
}

.nav-link {
    text-decoration: none;
    display: block;
    border-top: 1px solid;
    padding: 12px 30px;
    font-size: 18px;
}



#main-doc {
    position: absolute;
    margin-left: 340px;
    padding: 40px;
}

section > header {
    font-size: 1.9em;
}

.main-section header {
    margin-bottom: 20px;
}

.main-section p {
    margin-bottom: 18px;
}

article ul {
    margin-left: 40px;
    margin-top: 15px;
    margin-bottom: 15px;
}

article li {
    margin-bottom: 15px;
}

@media screen and (max-width: 600px) {
    #navbar {
        display: flex;
    }
}