/* Overall Style */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: black;
  }
  
  /* Keyboard Style */
  .keyboard {
    display: flex;
    margin-bottom: 10px;
  }
  
  /* Switch Common Style */
  .switch {
    position: relative;
    background-color: #ebebeb;
    width: 80px;
    height: 80px;
    margin-right: 10px;
    border-top: 10px solid #c2c2c2;
    border-left: 10px solid #c2c2c2;
    border-bottom: 10px solid #d4d4d4;
    border-right: 10px solid #d4d4d4;
    text-align: center;
    font-family: sans-serif;
    font-size: 23px;
    font-weight: bold;
    padding-top: 5px;
    user-select: none;
    cursor: pointer;
  }
  
  .switch:active {
    background-color: #d9d9d9;
    border-top: 10px solid #b0b0b0;
    border-left: 10px solid #b0b0b0;
    border-bottom: 10px solid #c2c2c2;
    border-right: 10px solid #c2c2c2;
  }
  
  /* First Row */
  .row_one .switch {
    color: #4ec9d9;
    box-shadow: 0 0 30px 0 #4ec9d9;
  }
  
  .row_one .switch:active {
      box-shadow: 0 0 30px 3px #4ec9d9;
  }
  
  /* Second Row */
  .row_two .switch {
    color: #d466ff;
    box-shadow: 0 0 30px 0 #d466ff;
  }
  
  .row_two .switch:active {
      box-shadow: 0 0 30px 3px #d466ff;
  }
  
  /* Third Row */
  .row_three .switch {
    color: #48e04d;
    box-shadow: 0 0 30px 0 #48e04d;
  }
  
  .row_three .switch:active {
      box-shadow: 0 0 30px 3px #48e04d;
  }