使用css或html在闭合的角度材质折叠面板之间添加填充

<div class="panel">
  <button class="panel-title">面板标题</button>
  <div class="panel-content">
    面板内容
  </div>
</div>

.panel {
  border: 1px solid #ccc;
  margin-bottom: 10px;
}

.panel-title {
  background-color: #f5f5f5;
  padding: 10px;
  cursor: pointer;
}

.panel-content {
  padding: 10px;
  display: none;
}

$(document).ready(function() {
  $('.panel-title').click(function() {
    $(this).next('.panel-content').slideToggle();
  });
});

.panel-content {
  padding: 10px;
}