i want to create a dropdown menu combine input inside as my image ,i use bootstrap
<i>
<div class="btn-group dropdown" dropdown >
<button type="button" class="btn btn-default" dropdown-toggle>
Dropdown
<span class="caret"></span>
</button>
<ul class="dropdown-menu" id="buttonuser" role="menu">
<li>
<p>Add to</p>
<input type="text" id="findUser" class="form-control">
</li>
<li><a href>Dropdown link</a></li>
<li><a href>Dropdown link</a></li>
<li><a href>Dropdown link</a></li>
<li>Remove</li>
</ul>
</div>
</i>
but when i click on input , menu dropdown hide all , i dont want this , please tell me how i do