/* surrounding margins (optional) */
.round{
margin-bottom:5px;
}
.round .c{
/* inner content padding */
padding:0 10px 0 10px;
border-top:0;
border-bottom:0;
border-style:solid;
}
.round .t, .round .b, .round .t b, .round .b b{
display:block;
overflow:hidden;
}
.round .t b, .round .b b{
float:right;
width:50%;
}
.round .t .r{
background-position:top right;
}
.round .b .r{
background-position:bottom right;
}
.round .b{
background-position:bottom left;
}
.round .br{
clear:both;
display:block;
overflow:hidden;
height:0px;
}