html {
    font-size: 62.5%;
  }
  
  body {
    background-color: black;
    margin: 0 auto;
  }
  
  .container {
    width: 80%;
    margin: 0 auto;
    padding: 1%;
  }
  
  .header {
    display: -webkit-flex;
    display: flex;
  }
  
  .header>div:first-child {
    margin-left: auto;
  }
  
  .main_container {
    background-color: #262626;
    margin: .5%;
    padding: .5%;
  }
  
  .row {
    display: -webkit-flex;
    display: flex;
  }
  
  .row>.side {
    width: 20%;
  }
  
  .row>.side>div {
    text-align: center;
  }
  
  .row>.main {
    width: 80%;
    height: 69rem;
    overflow: auto;
    display: -webkit-flex;
    display: flex;
    -webkit-justify-content: center;
    -webkit-align-items: center;
    -webkit-flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
  }
  
  .main .item {
    width: 26%;
    height: 18rem;
    display: -webkit-flex;
    display: flex;
    -webkit-justify-content: center;
    -webkit-align-items: center;
    justify-content: center;
    align-items: center;
  }
  
  .annotation {
    font-size: 3rem;
    display: -webkit-flex;
    display: flex;
    color: #fff;
    padding-bottom: 2.5rem;
    -webkit-justify-content: center;
    justify-content: center;
  }
  
  .annotation>div {
    width: 25%;
    height: 20rem;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    margin: .5%;
    padding: .5%;
    border: 2px solid gray;
    background-color: #262626;
    -webkit-justify-content: center;
    -webkit-align-items: center;
    justify-content: center;
    align-items: center;
    /* background-color: #262626; */
  }
  
  .annotation>div:last-child {
    width: 33%;
  }
  
  .annotation>div>header {
    background: gray;
    padding: .5rem;
    font-weight: bold;
    text-align: center;
  }
  
  .item {
    font-size: 3rem;
    margin: 1rem;
    padding: 1rem;
    border-radius: .5rem;
    background-color: #404040;
    color: #999999;
    border: .2rem solid #999999;
  }
  
  .item:focus {
    background-color: #cf0652;
    color: white;
    border: .2rem solid white;
  }
  
  .item:active {
    color: rgba(10, 10, 10, .5);
  }
  
  .active {
    color: rgba(10, 10, 10, .5) !important;
  }
  
  .clicked {
    color: white;
    font-weight: bold;
  }
  
  .input_key_event>p {
    margin: 1rem;
  }
  
  
  
  ::-webkit-scrollbar {
    width: 2.5rem;
  }
  
  ::-webkit-scrollbar-track {
    box-shadow: inset 0 0 .5rem#cf0652;
    border-radius: 1rem;
  }
  
  ::-webkit-scrollbar-thumb {
    background: #cf0652;
    border-radius: 1rem;
  }
  
  ::-webkit-scrollbar-thumb:hover {
    background: rgba(207, 6, 82, .5);
  }
  
  @media only screen and (max-width: 1280px) {
    html {
      font-size: 40%;
    }
  }