i-col-space5">
    <div class="layui-col-md4">
      <div class="grid-demo grid-demo-bg1">1/3</div>
    </div>
    <div class="layui-col-md4">
      <div class="grid-demo">1/3</div>
    </div>
    <div class="layui-col-md4">
      <div class="grid-demo grid-demo-bg1">1/3</div>
    </div>
  </div>

  <br>

  <div class="layui-row layui-col-space10">
    <div class="layui-col-md9">
      <div class="grid-demo grid-demo-bg1">75%</div>
    </div>
    <div class="layui-col-md3">
      <div class="grid-demo">25%<