Image responsive control

Hello

The images on my web site resize to such a small size on mobile that it is impossible to see them
How do I change the minimum size of images?
I couldn’t find it anywhere.
I am thinking specifically about the PIE chart on this page http://www.irdi.ch/curriculum/
but also about all small images on my web site

s

Hi There,

I would recommend you editing your image on photoshop or similar software and eliminating the transparent area around the circle.

Place your image again on your site. You will notice it will be much bigger on desktop.

So you can add to the style box of the image element.

max-width: 250px; margin: auto;

Hope it helps