* {
    box-sizing: border-box;
    scroll-behavior: smooth;
  }
  
  body {
    font-family: Arial, sans-serif;
    background: whitesmoke;
  }
  
  /* NAVBAR STYLE */
  
  #navbar {
    background: #223843;
    min-width: 280px;
    width: 330px;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    padding: 20px;
  }
  
  #navbar header {
     font-size: 2.5rem;
     color: #fff;
     font-weight: bold;
     text-align: center; 
     border-bottom: 2px solid #fff;
     padding: 10px;
  }
  
  #navbar ul {
    list-style: none;
    font-size: 1.5rem;
    padding: 0;
    margin-top: 0;
  }
  
  #navbar li {
    border-bottom: 2px solid #fff;
  }
  
  #navbar a {
    display: block;
    padding: 10px;
    text-decoration: none;
    color: #fff;
  }
  
  #navbar a:hover, #navbar a:focus {
    background: #595F62;
  }
  
  /* GENERAL STYLES */
  
  #main-doc {
    margin-left: 330px;
    background: #eff1f3;
    text-align: justify;
    padding: 0.5rem;
  }
  
  section header {
    font-size: 1.2rem;
    font-weight: bold;
    color: #223843;
  }
  
  .header5 {
    margin-top: 1.5rem;
  }
  
  section li {
    margin: 0.5rem;
  }
  
  section code {
    display: block;
    background: hsla(120, 100%, 10%, 0.2);
    border: 1px solid #223843;
    padding: 0.5rem;
  }
  
  .lastp {
    margin-left: -40px;
  }
  
  #main-doc a:any-link {
    text-decoration: none;
    color: hsl(189, 74%, 46%);
  }
  
  #main-doc :is(a:hover, a:focus) {
   color:  hsla(189, 74%, 46%, 0.8);
  }
  
  /* MEDIA QUERY */
  
  
  @media (max-width: 800px) {
  
  #navbar {
    background: #223843;
    min-width: 80%;
    max-width: 80%;
    height: auto;
    position: static;
    border-radius: 10px;
  }
  
  #navbar header {
    font-size: 2rem;
    font-weight: bold;
    text-align: center;
    padding: 0.5rem;
    color: #fff; 
    border-bottom: 1px solid #fff;
  }
  
  #navbar ul {
   margin: 0;
   padding: 0;
   list-style: none;
   font-size: 1.2rem;
  }
  
  #navbar li {
   border-bottom: 1px solid #fff;
  }
  
  #navbar a {
   display: block;
   text-decoration: none;
   color: #fff;
  }
  
  #navbar a:hover, #navbar a:focus {
   background: #595F62;
  }
  
  #main-doc {
    margin-left: auto;
    background: #eff1f3;
    text-align: justify;
    padding: 0.5rem;
  }    
  
  }