Не растягивается фоновое изображение на весь экран

Нашел где это можно изменить) Но тут такой большой код что я не представляю что делать! Где здесь что изменить чтобы можно было сделать как мне нужно?)

//Advanced Styling

if(!empty($virtue['content_bg_color'])) {
$content_bg_color = $virtue['content_bg_color'];
} else {
  $content_bg_color = '';
}
if(!empty($virtue['bg_content_bg_img']['url'])) {
  $content_bg_img = 'url('.$virtue['bg_content_bg_img']['url'].')';
} else {
  $content_bg_img = '';
}
if(!empty($virtue['content_bg_repeat'])) {
$content_bg_repeat = $virtue['content_bg_repeat'];
} else {
  $content_bg_repeat = '';
}
if(!empty($virtue['content_bg_placementx'])) {
  $content_bg_x = $virtue['content_bg_placementx'];
} else {
  $content_bg_x = '';
}
if (!empty($virtue['content_bg_placementy'])) {
$content_bg_y = $virtue['content_bg_placementy'];
} else {
  $content_bg_y = '';
}
if(!empty($virtue['content_bg_color']) || !empty($virtue['bg_content_bg_img']['url'])) {
    $contentclass = '.contentclass, .nav-tabs>.active>a, .nav-tabs>.active>a:hover, .nav-tabs>.active>a:focus {background:'.$content_bg_color.' '.$content_bg_img.' '.$content_bg_repeat.' '.$content_bg_x.' '.$content_bg_y.';}';
  } else {
    $contentclass = '';
  }
if(!empty($virtue['header_bg_color'])) {
  $header_bg_color = $virtue['header_bg_color'];
  } else {
    $header_bg_color = '';
  }
  if(!empty($virtue['bg_header_bg_img']['url'])) {
    $header_bg_img = 'url('.$virtue['bg_header_bg_img']['url'].')';
  } else {
    $header_bg_img = '';
  }
  if(!empty($virtue['header_bg_repeat'])) {
  $header_bg_repeat = $virtue['header_bg_repeat'];
  } else {
    $header_bg_repeat = '';
  }
  if(!empty($virtue['header_bg_placementx'])) {
  $header_bg_x = $virtue['header_bg_placementx'];
  } else {
    $header_bg_x = '';
  }
  if(!empty($virtue['header_bg_placementy'])) {
  $header_bg_y = $virtue['header_bg_placementy'];
  } else {
    $header_bg_y = '';
  }
  if(!empty($virtue['header_bg_color']) || !empty($virtue['bg_header_bg_img']['url'])) {
    $headerclass = '.headerclass {background:'.$header_bg_color.' '.$header_bg_img.' '.$header_bg_repeat.' '.$header_bg_x.' '.$header_bg_y.';}';
  } else {
    $headerclass = '';
  }
if(!empty($virtue['topbar_bg_color'])) {
$topbar_bg_color = $virtue['topbar_bg_color'];
} else {
  $topbar_bg_color = '';
}
if(!empty($virtue['bg_topbar_bg_img']['url'])) {
  $topbar_bg_img = 'url('.$virtue['bg_topbar_bg_img']['url'].')';
} else {
  $topbar_bg_img = '';
}
if(!empty($virtue['topbar_bg_repeat'])) {
$topbar_bg_repeat = $virtue['topbar_bg_repeat'];
} else {
  $topbar_bg_repeat = '';
}
if(!empty($virtue['topbar_bg_placementx'])) {
$topbar_bg_x = $virtue['topbar_bg_placementx'];
} else {
  $topbar_bg_x = '';
}
if(!empty($virtue['topbar_bg_placementy'])) {
$topbar_bg_y = $virtue['topbar_bg_placementy'];
} else {
  $topbar_bg_y = '';
}
if(!empty($virtue['topbar_bg_color']) || !empty($virtue['bg_topbar_bg_img']['url'])) {
    $topbarclass = '.topclass {background:'.$topbar_bg_color.' '.$topbar_bg_img.' '.$topbar_bg_repeat.' '.$topbar_bg_x.' '.$topbar_bg_y.';}';
  } else {
    $topbarclass = '';
  }
if(!empty($virtue['menu_bg_color'])) {
$menu_bg_color = $virtue['menu_bg_color'];
} else {
  $menu_bg_color = '';
}
if(!empty($virtue['menu_bg_img']['url'])) {
 $menu_bg_img = 'url('.$virtue['menu_bg_img']['url'].')';
} else {
  $menu_bg_img = '';
}
if(!empty($virtue['menu_bg_repeat'])) {
$menu_bg_repeat = $virtue['menu_bg_repeat'];
} else {
  $menu_bg_repeat = '';
}
if(!empty($virtue['menu_bg_placementx'])) {
$menu_bg_x = $virtue['menu_bg_placementx'];
} else {
  $menu_bg_x = '';
}
if(!empty($virtue['menu_bg_placementy'])) {
$menu_bg_y = $virtue['menu_bg_placementy'];
} else {
  $menu_bg_y = '';
}
if(!empty($virtue['menu_bg_color']) || !empty($virtue['bg_menu_bg_img']['url'])) {
    $menuclass = '.navclass {background:'.$menu_bg_color.' '.$menu_bg_img.' '.$menu_bg_repeat.' '.$menu_bg_x.' '.$menu_bg_y.';}';
  } else {
    $menuclass = '';
  }

if(!empty($virtue['mobile_bg_color'])) {
$mobile_bg_color = $virtue['mobile_bg_color'];
} else {
  $mobile_bg_color = '';
}
if(!empty($virtue['bg_mobile_bg_img']['url'])) {
  $mobile_bg_img = 'url('.$virtue['bg_mobile_bg_img']['url'].')';
} else {
  $mobile_bg_img = '';
}
if(!empty($virtue['mobile_bg_repeat'])) {
$mobile_bg_repeat = $virtue['mobile_bg_repeat'];
} else {
  $mobile_bg_repeat = '';
}
if(!empty($virtue['mobile_bg_placementx'])) {
$mobile_bg_x = $virtue['mobile_bg_placementx'];
} else {
  $mobile_bg_x = '';
}
if(!empty($virtue['mobile_bg_placementy'])) {
$mobile_bg_y = $virtue['mobile_bg_placementy'];
} else {
  $mobile_bg_y = '';
}
if(!empty($virtue['mobile_bg_color']) || !empty($virtue['bg_mobile_bg_img']['url'])) {
    $mobileclass = '.mobileclass {background:'.$mobile_bg_color.' '.$mobile_bg_img.' '.$mobile_bg_repeat.' '.$mobile_bg_x.' '.$mobile_bg_y.';}';
  } else {
    $mobileclass = '';
  }

if(!empty($virtue['footer_bg_color'])) {
$footer_bg_color = $virtue['footer_bg_color'];
} else {
  $footer_bg_color = '';
}
if(!empty($virtue['bg_footer_bg_img']['url'])) {
 $footer_bg_img = 'url('.$virtue['bg_footer_bg_img']['url'].')';
} else {
  $footer_bg_img = '';
}
if(!empty($virtue['footer_bg_repeat'])) {
$footer_bg_repeat = $virtue['footer_bg_repeat'];
} else {
  $footer_bg_repeat = '';
}
if(!empty($virtue['footer_bg_placementx'])) {
$footer_bg_x = $virtue['footer_bg_placementx'];
} else {
  $footer_bg_x = '';
}
if(!empty($virtue['footer_bg_placementy'])) {
$footer_bg_y = $virtue['footer_bg_placementy'];
} else {
  $footer_bg_y = '';
}
if(!empty($virtue['footer_bg_color']) || !empty($virtue['bg_footer_bg_img']['url'])) {
    $footerclass = '.footerclass {background:'.$footer_bg_color.' '.$footer_bg_img.' '.$footer_bg_repeat.' '.$footer_bg_x.' '.$footer_bg_y.';}';
  } else {
    $footerclass = '';
  }
if(!empty($virtue['boxed_bg_color'])) {
$boxedbg_color = $virtue['boxed_bg_color'];
} else {
  $boxedbg_color = '';
}
if(!empty($virtue['bg_boxed_bg_img']['url'])) {
  $boxedbg_img = 'url('.$virtue['bg_boxed_bg_img']['url'].')';
} else {
  $boxedbg_img = '';
}
if(!empty($virtue['boxed_bg_repeat'])) {
$boxedbg_repeat = $virtue['boxed_bg_repeat'];
} else {
  $boxedbg_repeat = '';
}
if(!empty($virtue['boxed_bg_placementx'])) {
$boxedbg_x = $virtue['boxed_bg_placementx'];
} else {
  $boxedbg_x = '';
}
if(!empty($virtue['boxed_bg_placementy'])) {
$boxedbg_y = $virtue['boxed_bg_placementy'];
} else {
  $boxedbg_y = '';
}
if(!empty($virtue['boxed_bg_fixed'])) {
$boxedbg_fixed = $virtue['boxed_bg_fixed'];
} else {
  $boxedbg_fixed = '';
}
if(!empty($virtue['boxed_bg_color']) || !empty($virtue['bg_boxed_bg_img']['url'])) {
    $boxedclass = 'body {background:'.$boxedbg_color.' '.$boxedbg_img.' '.$boxedbg_repeat.' '.$boxedbg_x.' '.$boxedbg_y.'; background-attachment:'.$boxedbg_fixed.';}';
  } else {
    $boxedclass = '';
  }

  if(isset($virtue['shop_title_uppercase']) and $virtue['shop_title_uppercase'] == 0) {
  $ptitle_uppercase = '.product_item .product_details h5 {text-transform: none;}';
} else {
  $ptitle_uppercase = '';
}
  if(!empty($virtue['x2_virtue_logo_upload']['url'])) {
  $x2logo = ' @media (max-width: 767px) {#logo .kad-standard-logo {display: none;} #logo .kad-retina-logo {display: block;}}';
} else {
  $x2logo = '';
}
  if(!empty($virtue['shop_title_min_height'])) {
  $ptitle_minheight = '.product_item .product_details h5 {min-height:'.$virtue['shop_title_min_height'].'px;}';
} else {
  $ptitle_minheight = '';
}
if(isset($virtue['logo_layout']) and ($virtue['logo_layout'] == 'logocenter')) {
  $menu_layout_center = '@media (max-width: 979px) {.nav-trigger .nav-trigger-case {position: static; display: block; width: 100%;}}';
  } else {
  $menu_layout_center = '';
  } 

  if(isset($virtue['hide_author']) and ($virtue['hide_author'] == 0)) {
  $show_author = '.kad-hidepostauthortop, .postauthortop {display:none;}';
  } else {
  $show_author = '';
  }
    if(isset($virtue['topbar_layout']) and ($virtue['topbar_layout'] == 1)) {
  $topbar_layout = '.kad-topbar-left, .kad-topbar-left .topbarmenu {float:right;} .kad-topbar-left .topbar_social, .kad-topbar-left .topbarmenu ul, .kad-topbar-left .kad-cart-total,.kad-topbar-right #topbar-search .form-search{float:left}';
  } else {
  $topbar_layout = '';
  }
  if(isset($virtue['hide_image_border']) and ($virtue['hide_image_border'] == 1)) {
  $wp_image_border = '[class*="wp-image"] {-webkit-box-shadow: none;-moz-box-shadow: none;box-shadow: none;border:none;}[class*="wp-image"]:hover {-webkit-box-shadow: none;-moz-box-shadow: none;box-shadow: none;border:none;}';
  } else {
  $wp_image_border = '';
  } 

if (!empty($virtue['custom_css'])) {
  $custom_css = $virtue['custom_css'];
} else {
  $custom_css = '';
}

$kad_custom_css = '<style type="text/css">'.$logo_padding_top.$logo_padding_bottom.$logo_padding_left.$logo_padding_right.$menu_margin_top.$menu_margin_bottom.$font_family.$color_primary.$color_primary30.$color_grayfont
.$color_footerfont.$contentclass.$topbarclass.$headerclass.$menuclass.$mobileclass.$footerclass.$boxedclass.$show_author.$ptitle_uppercase.$menu_layout_center.$x2logo.$ptitle_minheight.$topbar_layout.$wp_image_border.$custom_css.'</style>';
  echo $kad_custom_css;
}
function kad_custom_css_output() {
 echo get_option('kad_css_custom');
}
add_action('wp_head', 'kad_custom_css');
?>