CSSで角Rを表示するサンプルコード

Don't be shocked by tone of my voice.
Check out my new weapon, weapon of choice.

.boxer:before {
	background: transparent url("images/02.gif") no-repeat top right;
	margin: -10px -10px 0 -10px;
	height: 10px;
	display: block;
	border: none;
	content: url("images/01.gif");
}
.boxer {
	background-color: #FF7171;
	padding:10px;
	margin-bottom:1em;
}
.boxer:after {
	background: transparent url("images/03.gif") scroll no-repeat bottom right;
	display: block;
	padding-top: 10px;
	content: url("images/04.gif");
	margin: -10px;
	height: 6px;
}