使用flex实现四列到列列表的反馈

<div class="container">
  <div class="column">Column 1</div>
  <div class="column">Column 2</div>
  <div class="column">Column 3</div>
  <div class="column">Column 4</div>
</div>

.container {
  display: flex;
  flex-wrap: wrap;
}

.column {
  flex: 1 0 25%; /* 每列占据父容器的四分之一宽度 */
  padding: 10px;
  box-sizing: border-box;
}

.column {
  flex: 1 0 25%;
  padding: 10px;
  box-sizing: border-box;
  background-color: #f2f2f2;
  border: 1px solid #ccc;
  text-align: center;
}

.column:hover {
  background-color: #e0e0e0;
}