Why doesnt this background image display on jsfiddle?

Question

I am having a problem with a background image appearing. check out my jsfiddle and tell me what i am missing?

<div id="postcard-container">
<div id="postcard">
    <div id="postcard-title">
        <h1>Milkweed</h1>

    </div>
    <div id="postcard-sub">What is Milk weed? Sign up to Find out</div>
    <div id="postcard-email">
        <hr>Email capture situation</div>
    <div id="postcard-social"></div>
</div>
</div>

Answer 1

Change

background-image: url(...) no-repeat center center fixed;

to

background: url(...) no-repeat center center fixed;