x;
      background-color: #ffffff;
      color: #000000;
      line-height: 30px;
      text-align: center;
    }

    .active {
      background-color: #41E847;
    }

    .item + .item {
      margin-left: 10px;
    }

    .result {
      min-height: 52px;
      padding: 15px 0;
      border-bottom: 1px solid #5e6064;
      line-height: 1;
    }
  </style>
</head>
<body>
  <div class="container">
    <div class="header-container">
      <h2 class="subtitle">Наш код</h2>
      <pre>
const numbers = 