portrait picture in a image gallery

Question

I have an image gallery i want to use portrait images but every portrait picture gets stretched.

I want to know how exactly can i set a fixed resolution and all picture are aligned automatically.

Answer 1

You need to set the width of each picture in hthml:

<img src="folder/image.jpg" width="500" height="500" />

It is recommended by W3C to apply height and width attributes to each inline img tag!