Membuat Efek Pada Background dengan CSS3

.bgboxgandaluar {
 margin: 20px auto;
 padding: 5px;
 width: 450px;
 border: 2px solid #999;
 border-radius: 10x; 
 -moz-border-radius: 10px;
 -webkit-border-radius: 10px; 
 -o-transition: all 1.5s ease-in;
 -moz-transition: all 1.5s ease-in;
 -webkit-transition: all 1.5s ease-in; 
 background: #888;
 opacity: 0.6;
 filter: alpha(opacity=60); /* for IE */
 }
.bgboxgandaluar:hover {
 box-shadow: 1px 1px 18px #000;
 -moz-box-shadow: 1px 1px 18px #000;
 -webkit-box-shadow: 1px 1px 18px #000;
 background: red url(http://i964.photobucket.com/albums/ae124/gubhugreyot/background/bgFadeBlackV411H1.gif) bottom left repeat;
 border: 2px solid #43b1fd;
 opacity: 1.0;
 filter: alpha(opacity=100); /* for IE */  
 } 
.bgboxgandadalam {
 background: #111;
 border: 1px solid #666;
 padding: 15px 10px;
 border-radius: 25px;
 -moz-border-radius: 25px;
 -webkit-border-radius: 25px;
 -o-transition: all 2.5s ease-in-out;
 -moz-transition: all 2.5s ease-in-out;
 -webkit-transition: all 2.5s ease-in-out; 
 color: #eee;
 }
.bgboxgandadalam:hover {
 background: #000099 url(http://i964.photobucket.com/albums/ae124/gubhugreyot/background/bgGradRedBlackH1V300.gif) top left repeat;
 border: 1px solid #777;
 border-radius: 30px; 
 -moz-border-radius: 30px;
 -webkit-border-radius: 30px; 
 box-shadow: 1px 1px 8px #fff;
 -moz-box-shadow: 1px 1px 8px #fff;
 -webkit-box-shadow: 1px 1px 8px #fff;
 }

xHTML Box Ganda

<div class="bgboxgandaluar">
<div class="bgboxgandadalam">Letakkan Isi Box di sini!</div>
</div>

1. Atur lebar (width) sesuai kebutuhan.
2. Kode untuk box ini dapat dimanfaatkan di widget blog.
3. Simpanlah kode CSS di atas kode ]]></b:skin> atau bisa juga melalui penambahan widget