resize - How do I make add_image_size thumbnails percentages in php? -


in theme-functions.php file, have

add_image_size('ad-medium', $width = 250, $height = 250, true );

this determines size wordpress creates 'ad-medium' thumbnails. changes code determine shown on website instantly.

so if change 250 100, width reduced 100px. unfortunately, has 3 problems:

  1. this changes dimensions of future upload resizing ad-medium, that's out of question.
  2. the height ignored - can't warp - stays 1:1 aspect ratio no matter what.
  3. i can't write 100%. percentage sign not understood.

in context, code is:

    <?php }   // activate theme support items if (function_exists('add_theme_support')) { // added in 2.9      // theme uses post thumbnails     add_theme_support('post-thumbnails', array('post', 'page'));     set_post_thumbnail_size(100, 100); // normal post thumbnails      // add default posts , comments rss feed links head     add_theme_support( 'automatic-feed-links' ); }  // setup different image sizes if ( function_exists( 'add_image_size' ) ) {     add_image_size('blog-thumbnail', 150, 150); // blog post thumbnail size, box crop mode     add_image_size('sidebar-thumbnail', 140, 140, true); // sidebar blog thumbnail size, box crop mode      // create special sizes ads     add_image_size('ad-thumb', 75, 75, true);      add_image_size('ad-small', 100, 100, true);     add_image_size('ad-medium', $width = 250, $height = 250, true );     //add_image_size('ad-large', 500, 500);  }  // set content width based on theme's design , stylesheet. // used set width of images , content. should equal width theme // designed for, via style.css stylesheet. if (!isset($content_width))     $content_width = 500;   // theme supports native menu options, , uses wp_nav_menu() in 1 location top navigation. function appthemes_register_menus() {     register_nav_menus(array(         'primary' => __( 'primary navigation', 'appthemes' ),         'secondary' => __( 'footer navigation', 'appthemes' ),         'theme_dashboard' => __( 'theme dashboard', 'appthemes' )     )); } add_action( 'init', 'appthemes_register_menus' );  //ajax header javascript builder child categories ajax dropdown builder function cp_ajax_addnew_js_header() {     global $app_abbr;     $parentposting = get_option($app_abbr.'_ad_parent_posting');     // define custom javascript function ?>

how can leave thumbnail resizing feature alone , add line of code resize 100% width 100% height? @ moment, whole page resizing except stubborn thumbnails.

please let me know do.

thanks.

see: http://codex.wordpress.org/post_thumbnails: post thumbnails given class "wp-post-image". class depending on size of thumbnail being displayed can style output these css selectors.

so can add theme css file:

 #content img.ad-medium {height:100%; width:100%;}

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