<div class="form-group">
<input type="checkbox" name="agreement" value="agreement" required/> I agree to the
<button class="btn btn-primary btn-xs" data-toggle="modal" data-target="#myModal">terms and conditions</button>
<div class="form-group">
<input type="checkbox" name="agreement" value="agreement" required/> I agree to the
<button class="btn btn-primary btn-xs" data-toggle="modal" data-target="#myModal">terms and conditions</button>