js百叶窗效果

<div class="blinds-container">
  <div class="blind"></div>
  <div class="blind"></div>
  <div class="blind"></div>
  <!-- 可以根据需要添加更多叶片 -->
</div>

.blinds-container {
  position: relative;
  width: 100px;
  height: 300px;
  overflow: hidden;
}

.blind {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 50px; /* 每个叶片的高度 */
  background-color: #3498db;
  opacity: 0;
  transform-origin: bottom center;
  transition: all 0.5s ease;
}

/* 设置每个叶片的初始状态 */
.blind:nth-child(1) { transform: rotate(0deg); }
.blind:nth-child(2) { transform: rotate(15deg); }
.blind:nth-child(3) { transform: rotate(30deg); }
/* 依此类推 */

function openBlinds() {
  const blinds = document.querySelectorAll('.blind');
  blinds.forEach((blind, index) => {
    setTimeout(() => {
      blind.style.opacity = 1;
      blind.style.transform = 'rotate(0deg)';
    }, index * 100); // 控制每个叶片打开的时间间隔
  });
}

// 调用函数以开启百叶窗效果
openBlinds();