Close Icon Not Showing

I have a popup thats suppose to have a close button in the upper right.  For some reason it's not showing up.

If you click on any of the photos a popup comes up.
Here is the CSS
.close {
    background-image: url('fancybox_sprite.png');
	position: absolute;
    right: -15px;
    top: -15px;
    width: 36px;
	height: 36px;
	cursor: pointer;
	/*z-index: 8040;*/

    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    -ms-border-radius: 5px;
    -o-border-radius: 5px;
    border-radius: 5px;
.close:before {
    background-image: url('fancybox_sprite.png');
	color: rgba(255, 255, 255, 0.9);
    content: "X";
    font-size: 24px;
    text-shadow: 0 -1px rgba(0, 0, 0, 0.9);
.close:hover {
    background-color: rgba(64, 128, 128, 0.8);

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The rest of it.
<div id='market'><a href="#DSBio"><img src="about/AboutDS.jpg" alt="David Schure" /></a></div>
<a href="#x" class="overlay" id="DSBio"></a>
        <div class="popup">
            <h8>About David</h8><br>
            <h9>Polo has three different levels.  High, Medium and Low Goal.<br>•&nbsp;&nbsp;High Goal polo is considered to be for teams rated twenty goals or over.<br></h9></div>

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There is no element with a close class on the page

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DS928Author Commented:
Ok.....So where would it go, please.
DS928Author Commented:
Nevermind found it,  Thank you!
Remove your .close CSS and add this CSS (not sure if you are supposed to be wanting an image there

.popup:after {
    background: #fff;
    content: "X";
    height: 20px;
    position: absolute;
    right: -20px;
    top: -20px;
    width: 20px;
    text-align: center;

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