Gallery, image, size

echo "<div class='row'>
 <label class='control-label col-xs-12 col-sm-3 col-md-3 col-lg-3' for='calc_b'>".$locale['gallery_0207']."</label>
 <div class='col-xs-12 col-sm-9 col-md-9 col-lg-9'>
 ".form_text('calc_b', '', $calc_b, [
 'required' => TRUE,
 'type' => 'number',
 'error_text' => $locale['error_rate'],
 'width' => '100px',
 'max_length' => 4,
 'number_min' => 1,
 'class' => 'pull-left m-r-10'
 ])."
 ".form_select('calc_c', '', $calc_c, [
 'options' => $calc_opts,
 'placeholder' => $locale['choose'],
 'width' => '180px',
 'inner_width' => '100%',
 'class' => 'pull-left'
 ])."
 </div>
</div>";