将h4标签与覆盖颜色上的按钮对齐

<style>
  h4 {
    display: inline-block;
    vertical-align: middle;
  }
  .button {
    display: inline-block;
  }
</style>

<h4>标题</h4>
<button class="button">按钮</button>

<style>
  .container {
    display: flex;
    align-items: center;
  }
</style>

<div class="container">
  <h4>标题</h4>
  <button class="button">按钮</button>
</div>