Bootstrap Radio Button "checked" Flag
Answer : Assuming you want a default button checked. <div class="row"> <h1>Radio Group #2</h1> <label for="year" class="control-label input-group">Year</label> <div class="btn-group" data-toggle="buttons"> <label class="btn btn-default"> <input type="radio" name="year" value="2011">2011 </label> <label class="btn btn-default"> <input type="radio" name="year" value="2012">2012 </label> <label class="btn btn-default active"> <input type="radio" name="year" value="2013" checked="">2013 </label> </div> </div> Add the active class to the button ( label tag) you want defaulted and checked="" to ...