使用 CSS3 制作网站面包屑导航效果

<ul id="breadcrumbs-one">      <li><a href="">Lorem ipsum</a></li>      <li><a href="">Vivamus nisi eros</a></li>      <li><a href="">Nulla sed lorem risus</a></li>      <li><a href="">Nam iaculis commodo</a></li>      <li><a href="" class="current">Current crumb</a></li>  </ul>

#breadcrumbs-one{    background: #eee;    border-width: 1px;    border-style: solid;    border-color: #f5f5f5 #e5e5e5 #ccc;    border-radius: 5px;    box-shadow: 0 0 2px rgba(0,0,0,.2);    overflow: hidden;    width: 100%;  }    #breadcrumbs-one li{    float: left;  }    #breadcrumbs-one a{    padding: .7em 1em .7em 2em;    float: left;    text-decoration: none;    color: #444;    position: relative;    text-shadow: 0 1px 0 rgba(255,255,255,.5);    background-color: #ddd;    background-image: linear-gradient(to right, #f5f5f5, #ddd);    }    #breadcrumbs-one li:first-child a{    padding-left: 1em;    border-radius: 5px 0 0 5px;  }    #breadcrumbs-one a:hover{    background: #fff;  }    #breadcrumbs-one a::after,  #breadcrumbs-one a::before{    content: "";    position: absolute;    top: 50%;    margin-top: -1.5em;       border-top: 1.5em solid transparent;    border-bottom: 1.5em solid transparent;    border-left: 1em solid;    right: -1em;  }    #breadcrumbs-one a::after{     z-index: 2;    border-left-color: #ddd;    }    #breadcrumbs-one a::before{    border-left-color: #ccc;      right: -1.1em;    z-index: 1;   }    #breadcrumbs-one a:hover::after{    border-left-color: #fff;  }    #breadcrumbs-one .current,  #breadcrumbs-one .current:hover{    font-weight: bold;    background: none;  }    #breadcrumbs-one .current::after,  #breadcrumbs-one .current::before{    content: normal;    }