html,
body{
    font-family:Verdana, Geneva, Tahoma, sans-serif;
    background-color:#121212;
    color:whitesmoke ;
    line-height: 1.5em;
    min-width:295px;
}
#navbar{
    position:fixed;
    top: 0px;
    left: 0px;
    width: 300px;
    height: 100%;
    border-right: solid;
    background-color: rgb(241, 239, 239);
    border-color: lightcyan;
}
header{
    font-size: 1.8em;
    font-weight: thin;
    color:black;
    text-align: center;
    margin:10px;
}
#main-doc header{
    text-align: left;
    margin:5px;
    color: wheat;
}
#navbar ul {
    height: 88%;
    padding: 0;
    overflow-y: auto;
    overflow-x: hidden;
  }
  
  #navbar li {
    color: #4d4e53;
    border-top: 1px solid;
    list-style: none;
    position: relative;
    width: 100%;
  }
  #navbar a{
      display: block;
      text-decoration: none;
      padding: 10px 22px;
      cursor: pointer;
      color:#4d4e53;
  }
  #main-doc{
      position: absolute;
      margin-left:310px;
      margin-bottom: 150px;
      padding:10px;
  }
  section article{
      color:whitesmoke ;
      margin: 15px;
      font-size: 1em;
  }
 section li{
    margin: 15px,0px,0px,20px;
 }
 code{
     display: block;
     text-align: left;
     white-space: pre-line;
     word-wrap: normal;
     word-break: normal;
     line-height: 2;
     padding: 15px;
     margin: 10px;
     background-color: rgb(66, 65, 65);
     border-radius: 10px;
 }
 @media only screen and (max-width: 815px) {
    /* For mobile phones: */
    #navbar ul {
      border: 1px solid;
      height: 207px;
    }
  
    #navbar {
      background-color: white;
      position: absolute;
      top: 0;
      padding: 0;
      margin: 0;
      width: 100%;
      max-height: 275px;
      border: none;
      z-index: 1;
      border-bottom: 2px solid;
    }
  
    #main-doc {
      position: relative;
      margin-left: 0px;
      margin-top: 270px;
    }
  }
  
  @media only screen and (max-width: 400px) {
    #main-doc {
      margin-left: -10px;
    }
  
    code {
      margin-left: -20px;
      width: 100%;
      padding: 15px;
      padding-left: 10px;
      padding-right: 45px;
      min-width: 233px;
    }
  }