.breadcrumb > li + li:before {
	color: #CCCCCC;
	content: "/ ";  /* 面包屑分隔符 */
	padding: 0 5px;
}

<ol class="breadcrumb">
	<li><a href="#">Home</a></li>
	<li><a href="#">栏目一</a></li>
	<li class="active">子栏目1</li>
</ol>