栅格布局实现卡片流

style:

 <style>
    .ul{
      display: grid;
      grid-template-columns: repeat(auto-fill, 200px);
      grid-row-gap: 20px;
      grid-column-gap: 20px;
      justify-content: center;
    }
    .li{
      height: 150px;
    }
    .li div{
      width: 100%;
      height: 100%;
      padding: 20px;
      box-sizing: border-box;
      background-color: blue;
    }
  </style>

html

    <div class="ul">
      <div class="li">
        <div></div>
      </div>
      <div class="li">
        <div></div>
      </div>
      <div class="li">
        <div></div>
      </div>
      <div class="li">
        <div></div>
      </div>
      <div class="li">
        <div></div>
      </div>
      <div class="li">
        <div></div>
      </div>
      <div class="li">
        <div></div>
      </div>
      <div class="li">
        <div></div>
      </div>
      <div class="li">
        <div></div>
      </div>
    </div>