<!-------------多行双列内容开始了---------------->
<div class="card-group">
<div class="card">
<ul class="list-group list-group-flush">
<li class="list-group-item" style="background-color: #F2F2F2; font-size:16px; font-weight: bold;">标题1</li>
<li class="list-group-item">A second item</li>
<li class="list-group-item">A third item</li>
<li class="list-group-item">A fourth item</li>
<li class="list-group-item">And a fifth one</li>
</ul>
</div>
<div class="card">
<ul class="list-group list-group-flush">
<li class="list-group-item" style="background-color: #F2F2F2; font-size:16px; font-weight: bold;">标题1</li>
<li class="list-group-item">A second item</li>
<li class="list-group-item">A third item</li>
<li class="list-group-item">A fourth item</li>
<li class="list-group-item">And a fifth one</li>
</ul>
</div>
</div>
<!-------------多行双列内容结束了---------------->