单击关闭Office ui fabric js面板

Question

我正在使用fabric ui js面板，默认情况下，当您在面板外部单击时，它将关闭该面板。这是代码：

<div class="ms-PanelDescription">
    <button type="button" class="ms-Button">
        <span class="ms-Button-label">
          <i class="ms-Icon ms-Icon--Info"></i>
        </span>
    </button>
    <div class="ms-Panel">
        <button class="ms-Panel-closeButton ms-PanelAction-close">
            <i class="ms-Panel-closeIcon ms-Icon ms-Icon--Cancel"></i>
        </button>
        <div class="ms-Panel-contentInner">
            <p class="ms-Panel-headerText">@Model[a].Lists[i].Name</p>
            <div class="ms-Panel-content">
                <span class="ms-font-m">@Model[a].Lists[i].Description</span>
            </div>
        </div>
    </div>
</div>

如何预防？