html - 如何制作带填充的插图边框

Question

我有这个 JsFiddle:Click here

       <div id='menu'>
            <ul>
                <li><a class='styleanchor' href="${pageContext.request.contextPath}/mainpage/">
                    hone</a></li><!--  
                --><li><a class='styleanchor' href="${pageContext.request.contextPath}/verification/user/">asdsad</a></li><!--  
                --><li><a class='styleanchor' href="${pageContext.request.contextPath}/verification/user/">Replace this LOL</a></li><!--  
                --><li><a class='styleanchor' href=index.html>Replace this LOL</a></li><!--  
                --><li><a class='styleanchor' href=index.html>Replace this LOL</a></li><!--  
                --><li><a class='styleanchor' href="${pageContext.request.contextPath}/verification/store/"></a></li> 
            </ul>   
        </div>

我想让我的边框更像图像中的边框:

如您所见，它有一个内嵌边框，我猜它的顶部和底部都有填充。

我怎样才能实现那些使用css的？我尝试向 li 添加填充，但没有成功。

Answer 1

如果我理解这里的问题是DEMO

a.styleanchor:hover:before
    {
        content: "";
       position: absolute;
    display: inline-block;
    width: 0;
    height: 0;
    line-height: 0;
    border: 8px solid transparent;
    border-bottom: 8px solid #ffffff;
    left: 43%;
    right:43%;
    bottom: 0;
    }
#menu {
        text-align: center;
        position: relative;
        border-bottom: 1px solid gray;
        border-top: 1px solid gray;
        background: #ffffff; /* Old browsers */
        background: -moz-linear-gradient(top,  #ffffff 0%, #e5e5e5 100%); /* FF3.6+ */
        background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#ffffff), color-stop(100%,#e5e5e5)); /* Chrome,Safari4+ */
        background: -webkit-linear-gradient(top,  #ffffff 0%,#e5e5e5 100%); /* Chrome10+,Safari5.1+ */
        background: -o-linear-gradient(top,  #ffffff 0%,#e5e5e5 100%); /* Opera 11.10+ */
        background: -ms-linear-gradient(top,  #ffffff 0%,#e5e5e5 100%); /* IE10+ */
        background: linear-gradient(to bottom,  #ffffff 0%,#e5e5e5 100%); /* W3C */
        filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ffffff', endColorstr='#e5e5e5',GradientType=0 ); /* IE6-9 */
        border-radius: 10px 10px 0px 0px;

    }