ممكن اكواد؟

td {
height: px;
-moz-border-radius-bottomleft: 8px;
-moz-border-radius-bottomright: 8px;
-moz-border-radius-topleft: 8px;
-moz-border-radius-topright: 8px;
border:0px solid #d6d6d6;
}

.postbody{
font-size: 17px;
text-align: center;
font-weight: bold;
line-height: 2.0em;
}