[twitter-bootstrap] Input group - two inputs close to each other

Combining two inputs, where the group take up all width (100%), and the size is not 50% - 50%, no additional css. I made it nicely by the following code:

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<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>_x000D_
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>_x000D_
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<div class="container">_x000D_
    <form>_x000D_
        <div class="form-group">_x000D_
            <label>Name</label>_x000D_
            <div class="input-group" style="width:100%">_x000D_
                <span class="input-group-btn" style="width:100px;">_x000D_
     <select class="form-control">_x000D_
                     <option>Mr.</option>_x000D_
                     <option>Mrs.</option>_x000D_
                     <option>Dr</option>_x000D_
                 </select>_x000D_
    </span>_x000D_
    <input class="form-control" id="name" name="name" placeholder="Type your name" type="text">_x000D_
            </div>_x000D_
        </div>_x000D_
    </form>_x000D_
</div>
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