html,body{
    height: 100%;
    width: 100%;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    line-height: 1.6;
    display: flex;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

#navbar {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    text-align: center;
    min-width: 120px;
    max-width: 150px;
    max-height: 100%;
    background: #333;
    color: white;
    padding: 20px;
    overflow-y: auto;
    background-repeat: repeat-y;
    height: 100%;
    z-index: 1000;

  
}
#navbar header{
    font-family: Verdana ,Helvetica, serif;
    font-size: 14px
}

#navbar h1 {
    font-family: Helvetica, sans-serif;
    font-weight: lighter;
    text-align: center;
    vertical-align: middle;
    margin-bottom:10% ;
    border: 1px solid white;
    max-width: 100% ;
}
#navbar span{
    font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
    color: rgb(66, 160, 241);
}
#navbar h2{
    margin-top: 5px;
    font-family:  Verdana, Geneva, Tahoma, sans-serif;
    font-size: 13px;
    font-weight: lighter;
}
#nav-links-section{
    margin-top: 30%;
    align-content: center;
    
}
.nav-link {
    color: #0dc5dd;
    text-decoration: none;
    display: block;
    margin: 10px;
    padding: 5px;
    max-height: 20%;
    font-family: Helvetica, sans-serif;
    font-size: 16px;

    transition: background 0.3s ease;
}

.nav-link:hover {
    background: #444;
}

#introduction header , p {
    font-family:  Verdana ,Helvetica, serif;
}

#introduction h1{

    font-family:  Verdana ,Helvetica, serif;
    font-size: 25px;
    font-weight: bold;
    
}

#main-doc {
    display: block;
    min-width: 500px;
    min-height: 100%;
    width: 99%;
    margin-left: 220px;
    padding: 20px;
}

#title{
    padding: 0;
    font-size: 60px;
    font-family: Helvetica, sans-serif;
    text-align: center;
    margin-bottom:0 ;
    border: 1px solid rgb(211, 208, 208);
    min-width: 500px;
    max-width: 100% ;
    color: white;
    background-color: #3a3a3a;
    box-shadow: -2px 2px 5px #333333;
}

#title span{
    font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
    color: rgb(66, 160, 241);
}

#main-doc h1{
    font-size: 25px;
    font-family: Verdana ,Helvetica, serif;
    font-weight: 100;
    color: #333;
    margin-bottom: 5px;
}

#main-doc h2{
    font-size: 20px;
    font-family: Verdana ,Helvetica, serif;
    margin-top: 0;
}

#key-features{
    font-family: Verdana ,Helvetica, serif;
    margin-top: 0;
    padding-left: 30px;
    list-style-type: square;
    font-size: 16px;
    
}

#main-doc hr{
    margin-top: 30px;
    margin-bottom: 30px;
}

#Getting_Started li, #Advanced_Topics li{
    font-family: Verdana ,Helvetica, serif;
    font-size: 16px;
}

#Basic_Syntax h1 , #Advanced_Topics h1{
    margin-top: 70px;
    border:2px solid black;
    padding-left: 20px;
}

#Advanced_Topics li {
    font-family: Verdana ,Helvetica, serif;
    font-size: 16px;
}

.main-sections{
    text-align: center;
    color:  rgb(66, 160, 241);
    
}
.main-section {
    margin-bottom: 40px;
}

header {
    font-size: 1.8rem;
    margin-bottom: 10px;
    color: #3a3a3a;
}

code {
    font-family: Verdana ,Helvetica, serif;
    font-size: 16px;
    display: block;
    background: #f4f4f4;
    padding: 10px;
    border-left: 4px solid #00bcd4;
    margin: 20px 0;
}
.code-comment{
    color: green;
}

.string{
    color: rgb(51, 73, 172);
}
ul {
    margin: 10px 0;
    padding-left: 20px;
}

li {
    margin-bottom: 5px;
}


.reference{
    align-items: center;
    text-align: center;
}

@media screen and (max-width: 767px) {
  #main-doc {
    font-size: 14px;
    
  }
}