<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Χριστουγεννιάτικο Δέντρο</title>
  <style>
    body {
      font-family: Arial, sans-serif;
      background-color: #282c34;
      color: #fff;
      text-align: center;
      margin: 0;
      padding: 0;
    }

    .tree {
      position: relative;
      margin: 50px auto;
      width: 0;
      height: 0;
      border-left: 100px solid transparent;
      border-right: 100px solid transparent;
      border-bottom: 150px solid #0f0;
    }

    .tree:before, .tree:after {
      content: '';
      position: absolute;
      left: -50px;
      top: 100%;
      width: 0;
      height: 0;
      border-left: 150px solid transparent;
      border-right: 150px solid transparent;
      border-bottom: 200px solid #0f0;
    }

    .tree:after {
      left: -100px;
      top: 200%;
      border-left: 200px solid transparent;
      border-right: 200px solid transparent;
      border-bottom: 250px solid #0f0;
    }

    .trunk {
      position: absolute;
      top: 400px;
      left: 85px;
      width: 30px;
      height: 50px;
      background: #8b4513;
      border-radius: 5px;
    }

    .star {
      position: absolute;
      top: -30px;
      left: 90px;
      font-size: 30px;
      color: gold;
    }

    .ornament {
      position: absolute;
      background-color: red;
      width: 15px;
      height: 15px;
      border-radius: 50%;
    }

    .ornament:nth-child(1) { top: 40px; left: 70px; }
    .ornament:nth-child(2) { top: 80px; left: 120px; }
    .ornament:nth-child(3) { top: 140px; left: 50px; }
    .ornament:nth-child(4) { top: 180px; left: 160px; }
    .ornament:nth-child(5) { top: 250px; left: 100px; }
  </style>
</head>
<body>
  <h1>Χριστουγεννιάτικο Δέντρο</h1>
  <div class="tree">
    <div class="star">★</div>
    <div class="trunk"></div>
    <div class="ornament"></div>
    <div class="ornament"></div>
    <div class="ornament"></div>
    <div class="ornament"></div>
    <div class="ornament"></div>
  </div>
</body>
</html>