@media screen and (max-width: 800px) {
  /* web page 
  ----------------------------- */
  #webpage {
    grid-auto-rows: minmax(200px, auto);
    grid-auto-columns: minmax(200px, auto);

    column-gap: 20px;
    row-gap: 20px;

    margin: 20px 5% 40px 5%;
    padding: 0px;

    background-color: transparent;
  }

  .menu_pane {
    display: none;
  }

  .aside {
    display: none;
  }

  .iaside {
    display: none;
  }

  .content-pane {
    width: 100%;
  }

  .blog h1 {
    font-size: 50px;
  }

  
  /* items 
  ---------------------------------- */

  .item {
    padding: 20px;
    cursor: pointer;
    overflow: auto;
  }

  .main-item {
    grid-column-start: 1;
    grid-column-end: 2;
  }

  /* top and bottom bars 
---------------------------------------- */

  @keyframes bar-elongate {
    0% {
      width: calc(100% - 40px);
    }

    80% {
      width: calc(100% - 40px);
    }

    100% {
      width: calc(100% - 40px);
    }
  }

  #top_bar {
    display: block;
    left: 20px;
    top: 20px;
    width: calc(100% - 40px - 50px);
    width: calc(100% - 40px);
    transition: 400ms;
  }

  #top_bar:hover {
    width: calc(100% - 40px);
    right: 20px;
    transition: 400ms;
    height: calc(2 * 37px + 20px);
    padding-left: 0px;
  }

  #top_bar > .expand1 {
    visibility: hidden;
    margin-top: 10px;
    transition-delay: 0s;
    transition: 0s;
    position: absolute;
    left: 47px;
    top: calc(40px);
  }

  .top-bar > .expand2 {
    visibility: hidden;
    margin-top: 10px;
    transition-delay: 0s;
    transition: 0s;
    position: absolute;
    left: 177px;
    top: calc(40px);
  }

  .top-bar:hover > .expand {
    transition-delay: 0ms;
  }

  .slider:before {
    -webkit-transition: 0s;
    transition: 0s;
  }

  .bottom-bar:hover {
    transition: 0s;
  }

  .bottom-bar:hover {
    width: 156px;
    transition-delay: 0s;
  }

  .tooltiptext {
    display: none;
  }

  /* menu bar 
  ---------------------------------- */
  .top-bar3,
  .menu_option {
    display: inline;
    display: none;
  }

  .top-bar3 {
    overflow-x: scroll;
    overflow-y: hidden;

    height: 50px;
  }

  .top-bar3inside {
    min-width: 660px;
  }

  /* message bar 
----------------------------- */

  .top-bar2 {
    position: absolute;
    top: calc(40px + 37px);
    right: 20px;
    display: none;
  }

  /* search bar 
  ---------------------------- */
  #status_bar {
    display: none;
  }
}