<link href="//netdna.bootstrapcdn.com/bootstrap/3.1.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.1.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<button class="btn btn-primary" data-toggle="modal" data-target="#myModal">
Log in
</button>
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title" id="myModalLabel">Log in</h4>
</div>
<div class="modal-body">
<form role="form">
<div class="form-group">
<div class="input-group">
<input type="text" class="form-control" id="uLogin" placeholder="Login">
<label for="uLogin" class="input-group-addon glyphicon glyphicon-user"></label>
</div>
</div>
<div class="form-group">
<div class="input-group">
<input type="password" class="form-control" id="uPassword" placeholder="Password">
<label for="uPassword" class="input-group-addon glyphicon glyphicon-lock"></label>
</div>
</div>
<div class="checkbox">
<label>
<input type="checkbox"> Remember me