درس تكويد هيدر بلوغو في المنتصف بلغة Css

<div id="header">
<div id="header_center">
</div>
</div>
<div style="clear: both;"/>

#header {
-moz-background-clip: border;
-moz-background-inline-policy: continuous;
-moz-background-origin: padding;
background: transparent url(http://i42.servimg.com/u/f42/15/52/87/29/uou10.png) repeat-x scroll 0
0;
height: 334px;
width: 100%;
}
#header_center {
margin: 0px auto 0px auto;
-moz-background-clip: border;
-moz-background-inline-policy: continuous;
-moz-background-origin: padding;
background: transparent url(http://i42.servimg.com/u/f42/15/52/87/29/13403010.jpg) no-repeat 0
0;
height: 356px;
width: 1000px;