Bootstrap 3 remove space between inline inputs

I am doing a simple inline form. How can I adjust the blank space in between each input form? I would like to have the inputs basically touching.

    <div class="row">
<form class="in-line" role="form">
<div class="col-md-3 col-md-offset-3">
    <div class="form-group">
        <input type="email" class="form-control input-lg" id="EmailInput" placeholder="Email Address">
    </div>
</div>
<div class="col-md-2">
    <div class ="form-group">
        <input type="text" class="form-control input-lg" placeholder="City">
    </div>
</div>
<div class="col-md-3">  
        <button class="btn btn-lg btn-success" type="button">Submit</button>
</form>
</div>