Немного изменить стандартный шаблон вывода комментов в JComments - Настройка внешнего вида

/* rounded comments */
.rbox {margin: 0;width: auto;overflow: hidden;}
.rbox div {text-align: left;margin: 0px;}
.rbox_t {margin: 0;border-top: 1px solid #ccc;background-color: #FFF;}
.rbox_tl {background: url (images/jc_rb_tl.gif) 0 0 no-repeat;padding-left: 13px;}
.rbox_tr {height: 10px;overflow: hidden;background: url (images/jc_rb_tr.gif) 100% 0 no-repeat;padding-right: 13px;}
.rbox_m {border-left: 1px solid #ccc;border-right: 1px solid #ccc;width: auto;padding: 0px 8px; background-color:#fff;line-height: 100%;}
.rbox_b {margin-top: -5px;border-bottom: 1px solid #ccc;background-color: #FFF;height: 12px;line-height: 12px;}
.rbox_bl {background: url (images/jc_rb_bl.gif) 0 100% no-repeat;padding-left: 13px;}
.rbox_br {height: 13px;background: url (images/jc_rb_br.gif) 100% 100% no-repeat;padding-right: 13px;}

.rbox {margin:0; width:auto; overflow:hidden}
.rbox div {text-align:left; margin: 0px;}
.rbox_t {margin:0; background-color:#EEEEEE; height:30px}
.rbox_tl {}
.rbox_tr {height:7px}
.rbox_m {padding:0 8px}
.rbox_b {height:1px; line-height:1px}
.rbox_bl {}
.rbox_br {}