zProgrammer zProgrammer - 2 months ago 6
CSS Question

CSS double border (2 colors) without using outline?

I was wondering what you guys think is the easiest way to get a double border with 2 colors around a div? I tried using border and outline together and it worked in Firefox, but outline doesn't seem to work in IE and that's sort of a problem. Any good ways to go about this?

This is what I had but outline does not work with IE:
outline: 2px solid #36F;
border: 2px solid #390;

Thanks.

Answer

You can add multiple borders using pseudo elements, and the place them around your original border. No extra markup. Cross-browser compatible, this has been around since CSS 2.1. I threw a demo up on jsfiddle for you....note, the spacing between border colors is there for the example. You can close it by altering the number of pixels in the absolute positioning.

.border
{
    border:2px solid #36F; 
    position:relative;
    z-index:10
}

.border:before 
{
    content:"";
    display:block;
    position:absolute;
    z-index:-1;
    top:2px;
    left:2px;
    right:2px;
    bottom:2px;
    border:2px solid #36F
}

http://jsfiddle.net/fvHJq/1/

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