I have done some research but I still cannot fix the problem. I have an unwanted thumbnail on top of my post. I am using twenty twelve theme. This is what my post looks like:
The problem occurs after I changed my content.php to move the thumbnail next to the post titles and excerpts in my home page. This is what my homepage looks like:
In my child theme content.php, I have removed this line
<?php the_post_thumbnail(); ?>
under <header class="entry-header">. It helps to remove the unwanted thumbnail on the home page, but the unwanted thumbnails on the post pages are still there.
Do I need to post my content.php? I do not know how to do that though.
Thanks in advance.