@media (prefers-reduced-motion: no-preference) {
    * {
      scroll-behavior: smooth;
    }
  }
  
  * {
    box-sizing: border-box;
  }
  
  .title {
    display: none;
  }
  
  .hide {
    display: none;
  }
  
  main {
    font-family: Arial, sans-serif;
    min-width: 310px;
    max-width: 1850px;
  }
  
  section article {
    margin: 10px;
    text-align: justify;
    line-height: 1.5em;
  }
  
  section h2 {
    width: 100%;
    display: block;
    border-bottom: 1px solid black;
  }
  
  .navbar_container {
    position: fixed;
    width: 275px;
    padding: 20px 0 10px;
    overflow: auto;
  }
  
  nav ul {
    list-style-type: none;
  }
  
  /*.introduction_image {
    width: 300px;
    height: 180px;
    object-fit: cover;
    float: left;
    margin-right: 20px;
    margin-bottom: 10px;
  }*/
  
  /*.case_image {
    float: left;
    margin-right: 20px;
  }*/
  
  /*.monitor_image {
    float: left;
    margin-right: 20px;
    margin-bottom: 10px;
  }*/
  
  /*.mouse_image {
    float: left;
    margin-right: 20px;
    margin-bottom: 10px;
  }*/
  
  /*.keyboard_image {
    float: left;
    margin-right: 20px;
    margin-bottom: 10px;
  }*/
  
  /*.speakers_image {
    float: left;
    margin-right: 20px;
    margin-bottom: 10px;
  }*/
  
  /*.motherboard_image{
    float: left;
    margin-right: 20px;
    margin-bottom: 10px;
  }*/
  
  /*.cpu_image {
    float: left;
    margin-right: 20px;
    margin-bottom: 10px;
  }*/
  
  /*.ram_image {
    float: left;
    margin-right: 20px;
    margin-bottom: 10px;
  }*/
  
  /*.graphics_card_image{
    float: left;
    margin-right: 20px;
    margin-bottom: 10px;
  }*/
  
  /*.sound_card_image {
    float: left;
    margin-right: 20px;
    margin-bottom: 10px;
  }*/
  
  /*.power_supply_image {
    float: left;
    margin-right: 20px;
    margin-bottom: 10px;
    object-fit: cover;
    width: 230px;
  }*/
  
  .computer_data_storage_image {
    float: left;
    margin-right: 20px;
    margin-bottom: 10px;
  }
  
  nav a {
    text-decoration: none;
    display: block;
    padding: 10px;
    margin-left: -40px;
    font-size: 1.25rem;
    color: inherit;
  }
  
  nav a:hover{
    background-color: lightgrey;
    cursor: pointer;
  }
  
  .main-section a {
    text-decoration: none;
    color: #3366CC;
  }
  
  .main-section a:visited {
    color: #795CB2;
  }
  
  .main-section a:hover {
    text-decoration: underline;
    cursor: pointer;
  }
  
  .main-section a:active {
    color: #0645AD;
  }
  
  .text_container {
    margin-left: 300px;
    display: block;
    padding: 50px 20px;;
  }
  
  @media (max-height: 700px) {
    nav header{
      position: fixed;
      background-color: white;
      margin-top: -70px;
      width: 255px;
    }
    
    .navbar_container {
      overflow: auto;
      height: 550px;
      padding-top: 50px;
   }
  }
  
  @media (max-width: 800px) {
    .navbar_container {
      position: absolute;
      top: 10px;
      left: 40px;
      bottom: 0;
      right: 0;
      height: 260px;
      display: block;
      width: 90%;
      margin: 60px auto 20px auto;
      padding-top: 0;
    }
  
    .title {
      display: block;
      background-color: white;
      width: 100%;
      margin: 0;
      padding: 1px;
      margin-left: 30px;
      margin-top: 0px;
      font-size: 0.85em;
    }
  
    nav header {
      display: none;
    }
  
    #navbar {
      max-width: 625px
    }
  
    .text_container {
      margin: 220px 10px 10px 10px;
    }
  
    nav a:hover {
      border-radius: 30px;
    }
  }
  
  /*@media (max-width: 410px) {
    .introduction_image{
      width: 230px;
    }
  }*/