Kobo: images in epubs are tiny!

[Quoth]

Originally Posted by JSWolf

On a Kindle, you can use negative margins to be able to use more of the screen.

For personal use, not distribution.

[Phssthpok]

Originally Posted by Quoth

You can't fill the screen width on a Kindle as there is a fixed minimum margin.
Correctly done epub css will fill the width on most epub systems at width: 100%; height: auto; if the image isn't too tall.

This is on a Kobo, and the image is only about 200px in height.

[Quoth]

Originally Posted by Phssthpok

This is on a Kobo, and the image is only about 200px in height.

Then the CSS or enclosing HTML/CSS is wrong. Make sure height: auto; when width:; <any>%; and that no other CSS/HTML is overriding that. I don't have ANY other enclosing html for <img than a <p class="draw-centre"> that sets zero left and right margins, zero left & right padding and text-align: center; The top & bottom margins as desired. I only have non-zero padding-top for any entity at the start of a file (as margin-top will then be ignored on many renderers).

No margin: auto; anywhere.