Bootstrap : align button text left

How can I align text to the left within a bootstrap button? I have multiple buttons with text of varying length, and all the button need to have same width. I have achieved this using the class col-xs-11.

Sample button code below:

<input type="button" value="Applicant/Subsidiary" id="mybutton" name="test" class="primary-btn col-xs-11">

Is it possible to achieve this without creating a custom style, other than what is provided by bootstrap? I'm using Bootstrap v3.0.1