Dom PDF – Images dont get displayed

I came through this very funny case while i was developing a site which uses DOMPDF to generate PDF from html.

The problem was I was not getting the images in the PDF generated.

• I had url_fopen ON on server.
• I had tried all relative and absolute paths for the image.
• Everything I could imagine.

Finally I found out that a simple CSS was not letting the image get displayed on PDF

the css was for img tag

img{display:block}

I removed the CSS and the images were there. :((

A day wasted by a single line of CSS.