网站鼠标右键菜单自定义美化js代码

<script src="https://cdn.jsdelivr.net/npm/sweetalert2@8"></script>
    <script src="https://cdn.jsdelivr.net/npm/sweetalert2@8"></script>
        <style type="text/css">
            a {text-decoration: none;}
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            div.usercm ul li{margin:0px;padding:0px;line-height:35px;}
            div.usercm ul li a{color:#666;padding:0 15px;display:block}
            div.usercm ul li a:hover{color:#fff;background:rgba(170,222,18,0.88)}
            div.usercm ul li a i{margin-right:10px}
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            a.disabled:hover{background-color:rgba(255,11,11,0)!important}
            div.usercm{background:#fff !important;}
            </style>
        <div class="usercm" style="left: 199px; top: 5px; display: none;">
            <ul>
                <li><a rel="external nofollow" target="_blank" href="https://www.qkym.xyz/wp-content/themes/ITLY/go.php?url=aHR0cHM6Ly93d3cuYWF5bS5uZXQv"><i class="fa fa-home fa-fw"></i><span>首页</span></a></li>
                <li><a href="javascript:void(0);" onclick="getSelect();"><i class="fa fa-copy fa-fw"></i><span>复制</span></a></li>
                <li><a href="javascript:void(0);" onclick="baiduSearch();"><i class="fa fa-search fa-fw"></i><span>搜索</span></a></li>
                <li><a href="javascript:history.go(1);"><i class="fa fa-arrow-right fa-fw"></i><span>前进</span></a></li>
                <li><a href="javascript:history.go(-1);"><i class="fa fa-arrow-left fa-fw"></i><span>后退</span></a></li>
                <li style="border-bottom:1px solid gray"><a href="javascript:window.location.reload();"><i class="fa fa-refresh fa-fw"></i><span>重载网页</span></a></li>
                <li><a rel="external nofollow" target="_blank" href="https://www.qkym.xyz/wp-content/themes/ITLY/go.php?url=aHR0cHM6Ly93d3cuYWF5bS5uZXQvbGluaw=="><i class="fa fa-meh-o fa-fw"></i><span>和我当邻居</span></a></li>  
                   <li><a rel="external nofollow" target="_blank" href="https://www.qkym.xyz/wp-content/themes/ITLY/go.php?url=aHR0cHM6Ly93d3cuYWF5bS5uZXQvbXpzbQ=="><i class="fa fa-pencil-square-o fa-fw"></i><span>免责声明</span></a></li>
            </ul>
        </div>
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                    },
                    disabledContextMenu: function() {
                        window.oncontextmenu = function() {
                            return !1
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            })(jQuery);
 
            function getSelect() {
                "" == (window.getSelection ? window.getSelection() : document.selection.createRange().text) ? layer.msg("啊噢...你没还没选择文字呢！") : document.execCommand("Copy")
            }
            function baiduSearch() {
                var a = window.getSelection ? window.getSelection() : document.selection.createRange().text;
                "" == a ? layer.msg("啊噢...你没还没选择文字呢！") : window.open("https://www.baidu.com/s?wd=" + a)
            }
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