{"id":238418,"date":"2023-12-26T07:16:22","date_gmt":"2023-12-25T23:16:22","guid":{"rendered":"https:\/\/www.idc.net\/help\/238418\/"},"modified":"2023-12-26T07:16:22","modified_gmt":"2023-12-25T23:16:22","slug":"css%e5%85%a5%e9%97%a8-nav-down%ef%bc%88%e5%af%bc%e8%88%aa%e4%b8%8b%ef%bc%89","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/238418\/","title":{"rendered":"Css\u5165\u95e8: nav-down\uff08\u5bfc\u822a\u4e0b\uff09"},"content":{"rendered":"
Css\u5165\u95e8: nav-down\uff08\u5bfc\u822a\u4e0b\uff09<\/title><\/p>\n<h1 id=\"css%e5%85%a5%e9%97%a8-nav-down%ef%bc%88%e5%af%bc%e8%88%aa%e4%b8%8b%ef%bc%89-iWfTCacizh\">Css\u5165\u95e8: nav-down\uff08\u5bfc\u822a\u4e0b\uff09<\/h1>\n<h2 id=\"%e4%bb%80%e4%b9%88%e6%98%afnav-down%ef%bc%88%e5%af%bc%e8%88%aa%e4%b8%8b%ef%bc%89%ef%bc%9f-iWfTCacizh\">\u4ec0\u4e48\u662fnav-down\uff08\u5bfc\u822a\u4e0b\uff09\uff1f<\/h2>\n<p>\u5728CSS\u4e2d\uff0cnav-down\uff08\u5bfc\u822a\u4e0b\uff09\u662f\u4e00\u79cd\u5e38\u7528\u7684\u6280\u672f\uff0c\u7528\u4e8e\u521b\u5efa\u5177\u6709\u4e0b\u62c9\u83dc\u5355\u529f\u80fd\u7684\u5bfc\u822a\u680f\u3002\u901a\u8fc7\u4f7f\u7528nav-down\uff0c\u60a8\u53ef\u4ee5\u5728\u9f20\u6807\u60ac\u505c\u6216\u70b9\u51fb\u5bfc\u822a\u94fe\u63a5\u65f6\u663e\u793a\u9690\u85cf\u7684\u4e0b\u62c9\u83dc\u5355\u3002<\/p>\n<h2 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href=\"#\">\u4ea7\u54c1<\/a>\n <ul class=\"submenu\">\n <li><a href=\"#\">\u9999\u6e2f\u670d\u52a1\u5668<\/a><\/li>\n <li><a href=\"#\">\u7f8e\u56fd\u670d\u52a1\u5668<\/a><\/li>\n <li><a href=\"#\">\u4e91\u670d\u52a1\u5668<\/a><\/li>\n <\/ul>\n <\/li>\n <\/ul>\n<\/nav><\/code><\/pre>\n<h3 id=\"css%e6%a0%b7%e5%bc%8f-iWfTCacizh\">CSS\u6837\u5f0f<\/h3>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u9700\u8981\u4e3a\u5bfc\u822a\u680f\u548c\u4e0b\u62c9\u83dc\u5355\u6dfb\u52a0CSS\u6837\u5f0f\u3002<\/p>\n<pre><code>\/* \u5bfc\u822a\u680f\u6837\u5f0f *\/\nnav ul.menu {\n list-style-type: none;\n margin: 0;\n padding: 0;\n}\n\nnav ul.menu li {\n display: inline-block;\n position: relative;\n}\n\nnav ul.menu li a {\n display: block;\n padding: 10px;\n text-decoration: none;\n color: #000;\n}\n\n\/* \u4e0b\u62c9\u83dc\u5355\u6837\u5f0f *\/\nnav ul.menu li ul.submenu {\n display: none;\n position: absolute;\n top: 100%;\n left: 0;\n background-color: #fff;\n padding: 10px;\n}\n\nnav ul.menu li:hover ul.submenu {\n display: block;\n}<\/code><\/pre>\n<h2 id=\"%e7%a4%ba%e4%be%8b-iWfTCacizh\">\u793a\u4f8b<\/h2>\n<p>\u73b0\u5728\uff0c\u60a8\u5df2\u7ecf\u521b\u5efa\u4e86\u4e00\u4e2a\u57fa\u672c\u7684nav-down\uff08\u5bfc\u822a\u4e0b\uff09\u6548\u679c\uff0c\u8ba9\u6211\u4eec\u770b\u770b\u5b83\u662f\u5982\u4f55\u5de5\u4f5c\u7684\u3002<\/p>\n<nav>\n<ul class=\"menu\">\n<li><a href=\"#\">\u9996\u9875<\/a><\/li>\n<li><a href=\"#\">\u5173\u4e8e\u6211\u4eec<\/a>\n<ul class=\"submenu\">\n<li><a href=\"#\">\u516c\u53f8\u7b80\u4ecb<\/a><\/li>\n<li><a href=\"#\">\u56e2\u961f<\/a><\/li>\n<li><a href=\"#\">\u8054\u7cfb\u6211\u4eec<\/a><\/li>\n<\/ul>\n<\/li>\n<li><a href=\"#\">\u4ea7\u54c1<\/a>\n<ul class=\"submenu\">\n<li><a href=\"#\">\u9999\u6e2f\u670d\u52a1\u5668<\/a><\/li>\n<li><a href=\"#\">\u7f8e\u56fd\u670d\u52a1\u5668<\/a><\/li>\n<li><a href=\"#\">\u4e91\u670d\u52a1\u5668<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/nav>\n<h2 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