How to display an image in a block element in its actual size?

Hi community,

being very fond of the new block feature, I plan to use that a lot, especially for my customer’s convenience. Today, I’m using images for the first time in a block. There is a default behavior about the image size which I do not like very much. Each image is stretched to the maximum width of the surrounding block, preserving the aspect ratio, which yields rather big, albeit ugly images.

I know that the image size can be set in absolute pixel values, but I’d rather like small images just to be rendered “as is”, and not be stretched. How can I achieve this? Do I have to have a special template for this? Or is there a way to tell the Kirby engine not to resize images?

Own goal.
I have a custom css property on all images in a particular context that stretches them to 100% width.
Sorry for the inconvenience asking a silly question.