HTML Code

<!DOCTYPE html>

<html lang="en">

<head>

  <meta charset="UTF-8">

  <meta name="viewport" content="width=device-width, initial-scale=1.0">

  <title>CSS inset Fixed Example</title>

  <style>

    body {

      font-family: system-ui, sans-serif;

      padding: 1.5rem;

      line-height: 1.6;

      min-height: 120vh;

    }



    .toast {

      position: fixed;

      inset: 1rem 1rem auto auto;

      max-width: 16rem;

      padding: 0.85rem 1rem;

      background: #1e293b;

      color: #fff;

      border-radius: 0.5rem;

      box-shadow: 0 10px 25px rgba(15, 23, 42, 0.2);

      font-weight: 600;

    }

  </style>

</head>

<body>

  <h1>Fixed Toast with inset</h1>

  <p>Scroll the page — the toast stays pinned using fixed positioning.</p>

  <div class="toast">Saved successfully!</div>

</body>

</html>

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CSS inset Property - fixed positioning