I am trying to set a custom post thumbnail size in Wordpress. I have followed the documentation, which is pretty simple. But somehow the image is always set to some default size.
In functions.php
add_theme_support('post-thumbnails');
add_image_size('a',453,103);
When I print with the_post_thumbnail('a');
the post thumbnails will have the height 103 (correct) and width 100 (wrong). Why is the width ignored?
