add_image_size( 'portfolio-list', 1160, 450, true ); // portfolio - list
add_image_size( 'blog', 576, 450, true ); // blog - list
Comments
Of course after this change you need to upload portfolio images again or you can try to use https://wordpress.org/plugins/force-regenerate-thumbnails/
add_image_size( 'portfolio-list', 176, 480, false );
and delete and upload images
http://www.ekfa.kz/wordpress/?page_id=205
Best support