HTML：实现圣诞树代码（附完整源码）

HTML：实现圣诞树代码

以下是一个用 HTML 实现圣诞树的示例代码：

DOCTYPE html>
html>
head>
  style>
    body {
      background-color: #333;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
      margin: 0;
    }
    
    .tree {
      color: green;
      text-align: center;
      font-size: 20px;
      line-height: 20px;
      margin: 0 auto;
    }
    
    .tree-top {
      color: brown;
      font-size: 40px;
      line-height: 40px;
      margin-bottom: -10px;
    }
    
    .tree-body {
      height: 300px;
      position: relative;
    }
    
    .tree-layer {
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
    }
    
    .tree-layer:nth-child(1) {
      height: 40px;
      background-color: green;
    }
    
    .tree-layer:nth-child(2) {
      height: 60px;
      background-color: limegreen;
      margin-bottom: