<form role="search" method="get" action="<?php echo esc_url(home_url( '/' )); ?>"> <div class="input-group"> <input type="text" class="form-control" placeholder="<?php esc_attr_e('Enter a keyword...', 'maori'); ?>" name="s" /> <div class="input-group-append"> <button type="submit" class="btn btn-default"><i class="fa fa-search"></i></button> </div> </div> </form>