Hello, mobilitypower!
Sorry for the long delay…
In order for your images to be responsive, you can not put a fixed size for the image.
You can only limit the maximum width of the Image with the next code:
/*Single-post Featured image size*/
.single-post .entry-header
{
max-width:400px;
margin:auto
}
Change the max-width value per your needs.
To avoid cropping the image, you can follow the steps explained in the next post:
https://theme-vision.com/forums/topic/problems-with-featured-image-in-post/#post-8706
Best Regards
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This reply was modified 5 years, 2 months ago by
Zex.