cross_browser_corners_and_style.css

/*Opacity*/
filter: alpha(opacity=80); /* internet explorer */
-khtml-opacity: 0.8;      /* khtml, old safari */
-moz-opacity: 0.8;       /* mozilla, netscape */
opacity: 0.8;           /* fx, safari, opera */

/*Rounded Corners*/
-moz-border-radius: 10px; /* Firefox */
-webkit-border-radius: 10px; /* Safari, Chrome */
border-radius: 10px; /* CSS3 */


/*How I Implement it*/
.rounded {
-moz-border-radius: 10px; /* Firefox */
-webkit-border-radius: 10px; /* Safari, Chrome */
border-radius: 10px; /* CSS3 */
}

.opacity {
filter: alpha(opacity=80); /* internet explorer */
-khtml-opacity: 0.8;      /* khtml, old safari */
-moz-opacity: 0.8;       /* mozilla, netscape */
opacity: 0.8;           /* fx, safari, opera */
}


/*-------Corner Variations--------*/

.rounded-top {
-webkit-border-top-left-radius: 5px;
-webkit-border-top-right-radius: 5px;
-moz-border-radius-topleft: 5px;
-moz-border-radius-topright: 5px;
border-top-left-radius: 5px;
border-top-right-radius: 5px;
}

.rounded-bottom{
-webkit-border-bottom-right-radius: 5px;
-webkit-border-bottom-left-radius: 5px;
-moz-border-radius-bottomright: 5px;
-moz-border-radius-bottomleft: 5px;
border-bottom-right-radius: 5px;
border-bottom-left-radius: 5px;
}

.rounded-left{
-webkit-border-top-left-radius: 5px;
-webkit-border-bottom-left-radius: 5px;
-moz-border-radius-topleft: 5px;
-moz-border-radius-bottomleft: 5px;
border-top-left-radius: 5px;
border-bottom-left-radius: 5px;
}

.rounded-right{
-webkit-border-top-right-radius: 5px;
-webkit-border-bottom-right-radius: 5px;
-moz-border-radius-topright: 5px;
-moz-border-radius-bottomright: 5px;
border-top-right-radius: 5px;
border-bottom-right-radius: 5px;
}

.rounded-top-right{
-webkit-border-top-right-radius: 5px;
-moz-border-radius-topright: 5px;
border-top-right-radius: 5px;
}

.rounded-top-left{
-webkit-border-top-left-radius: 5px;
-moz-border-radius-topleft: 5px;
border-top-left-radius: 5px;
}

.rounded-bottom-right{
-webkit-border-bottom-right-radius: 5px;
-moz-border-radius-bottomright: 5px;
border-bottom-right-radius: 5px;
}

.rounded-bottom-left{
-webkit-border-bottom-left-radius: 5px;
-moz-border-radius-bottomleft: 5px;
border-bottom-left-radius: 5px;
}