$text .= '<div class="ad-banner b-class-'. $banner['b_id'] .'" style="float:left;clear:both;';


how to implement  style="float:left;clear:both;'; display- none   in responsive view, less than 768 pixel

@Anonymous
Use <style></style> or update your theme files.

thats index.php file,
  $store_id = $banner['b_id'];
  $text .= '<div class="ad-banner b-class-'. $banner['b_id'] .'" style="float:left;clear:both;';[/b]
  if($banner['b_size_x'] <> '') { $text .= 'width:' . $banner['b_size_x'] . ';'; }
  if($banner['b_size_y'] <> '') { $text .= 'height:' . $banner['b_size_y'] . ';'; }
  $text .= '">';
banner for desktop view doesnt fits in responsive  view, therefore, am trying to disable banner in responsive view, below 768 pixel- display none,

Use <style></style>

  if i puts display none in index.php then for both view, it will get disable,  its complicated to put  php media condition. 

"ad-banner b-class-1"ad-banner b-class-2