.wp-caption {

border: 1px solid #ddd;
text-align: center;
background-color: #f3f3f3;
padding-top: 4px;
margin: 10px;
   optional rounded corners for browsers that support it   
-moz-border-radius: 3px;
-khtml-border-radius: 3px;
-webkit-border-radius: 3px;
border-radius: 3px;

}

.wp-caption img {

margin: 0;
padding: 0;
border: 0 none;

}

.wp-caption p.wp-caption-text {

font-size: 11px;
line-height: 17px;
padding: 0 4px 5px;
margin: 0;

}