/* 去除导航栏选项中底下的蓝条 */
#nav *::after{
    background-color: transparent!important;
}

/* 导航栏菜单鼠标移入字体放大 */
#nav #site-name:hover, 
#nav .menus_item:hover, 
#nav #search-button:hover{
    font-size:28px;
}