CSS之布局系列

编程入门行业动态更新时间:2024-10-11 01:20:47

CSS之<a href=https://www.elefans.com/category/jswz/34/1770549.html style= 布局系列"/>

CSS之布局系列

原文网址：CSS之布局系列--顶部导航栏二级菜单居中展示_IT利刃出鞘的博客-CSDN博客

简介

本文介绍CSS将顶部导航栏居中展示并支持二级菜单下拉展示的方法。

代码

<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><title>知识星球</title><style>* {margin: 0;padding: 0;}.top-container {background-color: #406ff9;height: 60px;}.menu-container {text-align: center;}.logo-container {position: absolute;color: white;line-height: 58px;font-weight: bold;margin-left: 10px;}.logo {font-size: 20px;margin-left: 10px;}.first-menu-container {display: inline-block;list-style: none;}.first-menu {line-height: 60px;text-align: center;float: left;}.second-menu {float: none;background-color: #406ff9;}.second-menu a:hover {color: white;background-color: #0033fc;}.second-menu-container {position: absolute;list-style: none;display: none;}.first-menu:hover ul {display: block;}a {text-decoration: none;color: white;display: block;padding: 0 15px;white-space: nowrap;font-weight: bold;}a:hover {background-color: #0033fc;}</style>
</head>
<body>
<div class="top-container"><span class="logo-container"><span class="logo">IT天空</span></span><div class="menu-container"><ul class="first-menu-container"><li class="first-menu"><a href="#">首页</a></li><li class="first-menu"><a href="#">后端</a><ul class="second-menu-container"><li class="second-menu"><a href="#">Java基础</a></li><li class="second-menu"><a href="#">多线程</a></li><li class="second-menu"><a href="#">Spring</a></li></ul></li><li class="first-menu"><a href="#">前端</a><ul class="second-menu-container"><li class="second-menu"><a href="#">HTML</a></li><li class="second-menu"><a href="#">CSS</a></li><li class="second-menu"><a href="#">JavaScript</a></li></ul></li><li class="first-menu"><a href="#">运维</a><ul class="second-menu-container"><li class="second-menu"><a href="#">Linux</a></li><li class="second-menu"><a href="#">Docker</a></li></ul></li><li class="first-menu"><a href="#">关于本站</a><ul class="second-menu-container"><li class="second-menu"><a href="#">作者介绍</a></li><li class="second-menu"><a href="#">github</a></li></ul></li></ul></div></div>
</body>
</html>