<link href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<div class="email-holder">
<div class="input-group">
<label class="input-group-btn holder">
<span class="btn btn-primary holder">
تسجيل<input type="file" style="display: none;" multiple>
</span>
</label>
<input type="text" class="form-control" placeholder="قم بالتسجيل الان " readonly>
</div>
</div>