如何将搜索栏垂直居中？

<div class="container">
  <input type="text" class="search-bar" placeholder="Search">
</div>

.container {
  display: flex;
  align-items: center;
  justify-content: center; /* 可选，水平居中 */
  height: 100vh; /* 设置容器高度 */
}

.search-bar {
  height: 30px;
  width: 200px;
}

<div class="container">
  <input type="text" class="search-bar" placeholder="Search">
</div>

.container {
  position: relative;
  height: 100vh; /* 设置容器高度 */
}

.search-bar {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  height: 30px;
  width: 200px;
}