Thank you for your quick response.
I’m using a child theme.
I added your code and it works, thank you very much.
After severous houers I have found how to change the text color of the posts:
Insert this code into style.css
.entry { color: black; }
.entry.excerpt { color: black; }
Finaly I have found the reponse to my 2nd problem:
<img src="<?php echo get_template_directory_uri(); ?>/img/thumb-medium.png" alt="<?php the_title(); ?>" />
I have put this line as comment on the file content-feature.php
But i have not found the anwer to my 1st question if someone can help me please
