html标签

其中 nav 请根据你的主题改写，并修改php中的 nav ，否则设置无效，又或者因为冲突而发生排版错误。

<div class="nav">
    <ul>
    <li><a href="链接"><img src="图标链接"></a>主页</li>
    <li><a href="链接"><img src="图标链接"></a>分类</li>
    <li><a href="链接"><img src="图标链接"></a>留言</li>
    <li><a href="链接"><img src="图标链接"></a>说说</li>
    <li><a href="链接"><img src="图标链接"></a>关于</li>
    </ul>
    </div>

css

.nav {
    display: none;
}

@media only screen and (max-width:450px) {
    .site-info {
        padding: 15px 0 52px 0;
    }

    #advert_widget,.php_text .widget-text,.widget .textwidget {
        padding: 0;
    }

    .nav {
        position: fixed;
        z-index: 999;
        bottom: 0;
        width: 100%;
        height: 52px;
        display: block;
        right: 0;
        box-shadow: 0px 0px 10px 3px rgba(223,233,247,1.0);
        -webkit-box-shadow: 0px 0px 10px 3px rgba(223,233,247,1.0);
        -moz-box-shadow: 0px 0px 10px 3px rgba(223,233,247,1.0);
        -o-box-shadow: 0px 0px 10px 3px rgba(223,233,247,1.0);
        -ms-box-shadow: 0px 0px 10px 3px rgba(223,233,247,1.0);
    }

    .nav {
        padding-left: 0;
        margin-bottom: 0;
        list-style: none;
    }

    .nav img {
        width: 25px !important;
        height: 25px !important;
    }

    .nav > ul {
        position: relative;
        z-index: 1;
        height: 52px;
        background: rgba(255,255,255,.85);
        list-style-image: none;
        list-style-type: none;
        margin: 0px;
        padding: 0px !important;
    }

    .nav ul li {
        position: relative;
        float: left;
        width: 20%;
        margin: 0px;
        padding: 0px;
        list-style-image: none;
        list-style-type: none;
        top: 7px;
        left: 6%;
    }

    .nav ul li a {
        display: block;
        margin-right: auto;
        margin-left: auto;
    }
}