Remove the Extra Whitespace Surrounding Iframes?

Question

I am using iframes in my page, and have stumbled across a weird issue. I set the iframe css like so

iframe {
    margin: none;
    padding: none;
    background:         


        

Answer 1

When you are using an inline element, the whitespace might be from the "line" the element is part of (ie. the space below the baseline). The solution then is to add this to its parent element.

line-height: 0;