open_in_new content_copy 
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Alert</title>
    <link
      rel="stylesheet"
      href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.2.0/css/all.min.css"
      integrity="sha512-xh6O/CkQoPOWDdYTDqeRdPCVd1SpvCA9XXcUnZS2FmJNp1coAFzvtCN9BmamE+4aHK8yyUHUSCcJHgXloTyT2A=="
      crossorigin="anonymous"
      referrerpolicy="no-referrer"
    />
    <style>
      html,
      body {
        margin: 0;
        padding: 0;
        width: 100%;
        height: 100%;
        font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
          Segoe UI, Roboto, Helvetica Neue, Arial, Noto Sans, sans-serif,
          Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol, Noto Color Emoji;
      }

      .container {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        max-width: 80%;
        width: 90%;
      }

      .alert {
        background-color: #ec4899;
        color: white;
        padding: 1.2rem;
        display: flex;
        justify-content: space-between;
        border-radius: 0.3rem;
      }

      .header-text {
        display: flex;
        gap: 0.5rem;
        align-items: center;
        font-size: 16px;
        font-weight: 400;
      }

      .cancel-button {
        display: flex;
        font-size: x-large;
        font-weight: 500;
        cursor: pointer;
      }

      .hidden-revert {
        display: none;
        text-transform: uppercase;
        font-weight: bold;
        background-color: #ec4899;
        color: #fff;
        border: none;
        outline: none;
        padding: 10px 15px;
        border-radius: 3px;
        cursor: pointer;
      }
      .revert {
        display: none;
        font-size: 16px;
        font-weight: 700;
        text-transform: uppercase;
      }

      .input-button {
        margin-top: 1.3rem;
        border: none;
        width: 2rem;
        background: none;
      }

      input[type='color' i] {
        height: 29px;
        cursor: pointer;
      }

      @media screen and (min-width: 900px) {
        .container {
          max-width: 60%;
          width: 50%;
        }
      }
    </style>
  </head>
  <body>
    <div class="container">
      <div class="alert" id="alert">
        <div class="header-text">
          <i class="fas fa-bell"></i>
          <span class="bell"
            ><strong>Pink!</strong
            ><em> This is a pink alert - check it out </em></span
          >
        </div>
        <div class="cancel-button" id="cancel-button">×</div>
      </div>
      <button type="button" class="hidden-revert" id="revert-button">
        undo changes
      </button>
      <input type="color" class="input-button" id="input-button" />
      <!-- <embed type="text/html" src="snippet.html" width="500" height="200" /> -->
    </div>

    <script async>
      const alertBox = document.getElementById('alert');
      const cancelButton = document.getElementById('cancel-button');
      const revertButton = document.getElementById('revert-button');
      const inputButton = document.getElementById('input-button');

      function cancelAlert() {
        alertBox.style.display = 'none';
        revertButton.style.display = 'block';
      }

      function displayAlert() {
        alertBox.style.display = 'flex';
        revertButton.style.display = 'none';
      }

      function getColor() {
        let color = localStorage.getItem('color');
        alertBox.style.backgroundColor = color;
        revertButton.style.backgroundColor = color;
        inputButton.value = color;
      }

      getColor();

      function saveColor(color) {
        localStorage.setItem('color', color);
      }

      function changeColor(e) {
        saveColor(e.target.value);
        alertBox.style.backgroundColor = e.target.value;
        revertButton.style.backgroundColor = e.target.value;
      }

      inputButton.addEventListener('input', changeColor);
      revertButton.addEventListener('click', displayAlert);
      cancelButton.addEventListener('click', cancelAlert);
    </script>
  </body>
</html>