*,
      :after,
      :before {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }

      body {
        height: 100vh;
        display: flex;
        justify-content: center;
        align-items: center;
        background-color: #fef9e7;
      }

      .container {
        display: flex;
        flex-direction: column;
        align-items: center;
      }

      .icon {
        border: 3px solid #262626;
        border-radius: 50%;
        padding: 25px;
        position: relative;
      }

      i {
        font-size: 28px;
        color: #262626;
      }

      button {
        margin-top: 32px;
        padding: 10px 25px;
        background-color: #d22b2b;
        border: 2px solid transparent;
        color: #fff;
        font-size: 14px;
        text-transform: uppercase;
        cursor: pointer;
        box-shadow: 0 1px 2px #aaa;
        transition: all 250ms ease-in-out;
        outline: none;
      }

      button:hover {
        border: 2px solid #d22b2b;
        background-color: #fff;
        color: #d22b2b;
        transform: scale(0.9);
      }

      .itemsCount {
        position: absolute;
        background-color: #d22b2b;
        width: 20px;
        height: 20px;
        border-radius: 50%;
        top: 0;
        right: 0;
        display: none;
        color: #fff;
        padding: 2px;
        text-align: center;
        font-family: sans-serif;
        font-size: 14px;
      }

      .appear {
        animation: appear 250ms ease-in 1 forwards;
      }

      .flicker {
        animation: appear 150ms ease-in 1 forwards;
      }

      @keyframes appear {
        0% {
          transform: scale(0.5);
        }

        100% {
          transform: scale(1);
        }
      }

      @keyframes flicker {
        0% {
          transform: scale(0.9);
        }

        100% {
          transform: scale(1);
        }
      }

 let itemsCountDiv = document.querySelector(".itemsCount");
      let cartIcon = document.querySelector(".cartIcon");

      let itemsCount = 1;

      function displayItemsCount() {
        itemsCountDiv.style.display = "block";
        itemsCountDiv.classList.add("appear");
        cartIcon.classList.add("flicker");
        itemsCountDiv.innerHTML = itemsCount;

        setTimeout(() => {
          itemsCountDiv.classList.remove("appear");
          cartIcon.classList.remove("flicker");
        }, 250);

        itemsCount++;
      }