
            grid-gap: 10px;
        }
        .item{
            background-color:blueviolet;
            color: white;
            text-align: center;
            padding-top: 5px;
        }
    </style>
</head>
<body>
     <div class="container">
          <div class="nested">
              <div class="item">1</div>
          </div>
          <div class="nested">
              <div class="item">2</div>
              <div class="item">3</div>
          </div>
          <div class="nest