<p dir="auto">When I am using DropDownMenu and as <code class="notranslate">menuStyle</code> I am setting transparency but it is being set for a div whose role is <code class="notranslate">menu</code> but a "div" above that is actually controlling the transparency.</p>


<ul class="contains-task-list">
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I have searched the <a href="https://github.com/mui-org/material-ui/issues">issues</a> of this repository and believe that this is not a duplicate.</li>
</ul>
<h2 dir="auto">Expected Behavior</h2>

<p dir="auto">Make the Menu transparent</p>
<h2 dir="auto">Current Behavior</h2>

<p dir="auto">The menu is not becoming transparent.</p>
<h2 dir="auto">Steps to Reproduce (for bugs)</h2>

<p dir="auto"><a href="https://codesandbox.io/s/o544j10l39" rel="nofollow">https://codesandbox.io/s/o544j10l39</a></p>
<ol dir="auto">
<li></li>
<li></li>
<li></li>
<li></li>
</ol>
<h2 dir="auto">Context</h2>

<h2 dir="auto">Your Environment</h2>

<table role="table">
<thead>
<tr>
<th>Tech</th>
<th>Version</th>
</tr>
</thead>
<tbody>
<tr>
<td>Material-UI</td>
<td>0.20</td>
</tr>
<tr>
<td>React</td>
<td>16.2.0</td>
</tr>
<tr>
<td>browser</td>
<td>chrome</td>
</tr>
<tr>
<td>etc</td>
<td></td>
</tr>
</tbody>
</table>
<p dir="auto">Hi,</p>
<p dir="auto">I was wondering if it is possible to use keyboard (tab / arrow key) navigation inside a modal dialog and not have it "bubble up" beyond the dialog.</p>
<p dir="auto">Currently when I open a dialog with modal set it true, and attempt to use the tab key to navigate between elements, it still gives focus to elements outside of the dialog. Is this something I need to add handlers for specifically on any dialog I have?</p>
<p dir="auto">Thanks,</p>
<p dir="auto">Matt</p>