Centering images causes W3C validation issues

Then choosing align centre when inserting your images.

When I chose center alignment in the media uploader screen, it centers the image in the backend, but when I publish the post, the images are not centered on the actual post.

The W3C error is gone now that I did aligncenter instead of div textalign center, but the images are not centered as you can see here:

https://iphoneblogr.com/2011/08/comex-has-been-hired-by-apple-as-an-intern/

Then you probably need to add some classes to your theme’s stylesheet.

.aligncenter {
	display: block;
	margin-left: auto;
	margin-right: auto;
}
.alignleft {
	float: left;
}
.alignright {
	float: right;
}

Thanks esmi that did it! Images are now center aligned and the site still passes W3C validation. You’re the best!