body {
    font-family: Arial, sans-serif;
    margin: 0;
    display: flex;
    min-height: 100vh;
}
p, li {
    text-align: justify;
}

#navbar {
    width: 250px;
    background-color: #DCDCDC;
    position: fixed;
    height: 100%;
    overflow-y: auto;
}

#navbar header {
    font-size: 1.5em;
    margin-top: 20px;
    margin-bottom: 20px;
    text-align: center;
}

.nav-link {
    color: black;
    text-decoration: none;
    display: block;
    margin: 10px 0;
    padding: 15px;
}

.nav-link:hover,  .nav-link.active {
    background-color: #D3D3D3;
}

#main-doc {
    margin-left: 270px;
    padding: 20px;
    flex: 1;
}

.main-section {
    margin-bottom: 40px;
}

.main-section header {
    font-size: 1.8em;
    margin-bottom: 10px;
}

code {
    background-color: #f4f4f4;
    display: flex;
    width: 99%;
    padding: 10px 10px;
    border-radius: 3px;
}

ul {
    padding-left: 20px;
}

@media (max-width: 768px) {
    #navbar {
        position: static;
        width: 100%;
        height: auto;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    #main-doc {
        margin-left: 0;
    }
}