auto image size not working ?

[miguel-negrao]

Hi

Putting 'auto' in an image (not background image) to get automatic width doesn't seem to work:

---
marp: true
title: Marp CLI example
description: Hosting Marp slide deck on the web
theme: uncover
paginate: true
_paginate: false
---

![auto](https://www.netlify.com/img/press/logos/logomark.svg)

Is this not the correct way to automatically resize the image ?

Would be nice we could resize the image as percentage of slide width or height also on foreground images.

[yhatt]

The "auto" string just means defining "auto" to the alternative text (alt attribute) of image. To use auto keyword correctly, you have to specify which one of width (w) or height (h).

![width:auto](https://www.netlify.com/img/press/logos/logomark.svg)

However, auto keyword in CSS means the original image size of image. Thus, it cannot resize to fill of slide yet.

Percentage value such as width:100% was not supported caused by a special case of in-place DOM update in Firefox (#62). But certainly I think percentage should be enabled in an inline image too.

[miguel-negrao]

Ok, got it, thanks !