1 <!DOCTYPE html>
2 <html>
3 <head>
4 <meta charset="utf-8" />
5 <title></title>
6 <style>
7 html,body,ul,li{
8 padding:0;
9 margin: 0;
10 }
11 body{
12 width:100%;
13 height:1700px;
14 }
15 .div{
16 width:160px;
17 height:auto;
18 position:fixed;
19 left: 0;
20 top:50%;
21 margin-top: -60px;
22
23 }
24 .ul-a{
25 background-color: #333;
26 color: #fff;
27 width:160px;
28 height:auto;
29
30 }
31 .title{
32 text-align: center;
33 width:160px;
34 height:30px;
35 line-height: 30px;
36 cursor: pointer;
37 }
38 .ul-a li:hover ul{
39 display: block;
40 }
41
42 .ul-a li{
43 text-align: center;
44 width:160px;
45 height:auto;
46 border-bottom: 1px solid #eee;
47 }
48 .ul-b{
49
50 display: none;
51 width:160px;
52 height:auto;
53 background-color: #eee;
54 color:#333;
55 border-bottom: 1px dashed #333;
56 text-align: center;
57 }
58 .ul-b li{
59 position:relative;
60 cursor: pointer;
61 width:160px;
62 height:30px;
63 line-height: 30px;
64 color:#333;
65 border-bottom: 1px dashed #333;
66 text-align: center;
67 }
68 .ul-b li:hover .list-3{
69 display:block;
70 }
71 .list-3{
72 display: none;
73 width:160px;
74 height:93px;
75 background-color: #aaa;
76 color:#333;
77 cursor: pointer;
78 position: absolute;
79 left: 160px;
80 top:0;
81
82 }
83 .list-3-list{
84 line-height: 30px;
85 width:160px;
86 height:30px;
87 border-bottom: 1px solid #333;
88 text-align: center;
89 }
90 </style>
91 </head>
92 <body>
93 <div class="div">
94 <ul class="ul-a">
95 <li>
96 <div class="title">一级目录</div>
97 <ul class="ul-b">
98 <li>二级目录
99 <div class="list-3">
100 <div class="list-3-list">三级栏目</div>
101 <div class="list-3-list">三级栏目</div>
102 <div class="list-3-list">三级栏目</div>
103 </div>
104 </li>
105 <li>二级目录
106 <div class="list-3">
107 <div class="list-3-list">三级栏目</div>
108 <div class="list-3-list">三级栏目</div>
109 <div class="list-3-list">三级栏目</div>
110 </div>
111 </li>
112 <li>二级目录
113 <div class="list-3">
114 <div class="list-3-list">三级栏目</div>
115 <div class="list-3-list">三级栏目</div>
116 <div class="list-3-list">三级栏目</div>
117 </div>
118 </li>
119 </ul>
120 </li>
121 <li>
122 <div class="title">一级目录</div>
123 <ul class="ul-b">
124 <li>二级目录
125 <div class="list-3">
126 <div class="list-3-list">三级栏目</div>
127 <div class="list-3-list">三级栏目</div>
128 <div class="list-3-list">三级栏目</div>
129 </div>
130 </li>
131 <li>二级目录
132 <div class="list-3">
133 <div class="list-3-list">三级栏目</div>
134 <div class="list-3-list">三级栏目</div>
135 <div class="list-3-list">三级栏目</div>
136 </div>
137 </li>
138 <li>二级目录
139 <div class="list-3">
140 <div class="list-3-list">三级栏目</div>
141 <div class="list-3-list">三级栏目</div>
142 <div class="list-3-list">三级栏目</div>
143 </div>
144 </li>
145 </ul>
146 </li>
147 <li>
148 <div class="title">一级目录</div>
149 <ul class="ul-b">
150 <li>二级目录
151 <div class="list-3">
152 <div class="list-3-list">三级栏目</div>
153 <div class="list-3-list">三级栏目</div>
154 <div class="list-3-list">三级栏目</div>
155 </div>
156 </li>
157 <li>二级目录
158 <div class="list-3">
159 <div class="list-3-list">三级栏目</div>
160 <div class="list-3-list">三级栏目</div>
161 <div class="list-3-list">三级栏目</div>
162 </div>
163 </li>
164 <li>二级目录
165 <div class="list-3">
166 <div class="list-3-list">三级栏目</div>
167 <div class="list-3-list">三级栏目</div>
168 <div class="list-3-list">三级栏目</div>
169 </div>
170 </li>
171 </ul>
172 </li>
173 </ul>
174 </div>
175 </body>
176 </html>
效果图：
原文地址：https://www.cnblogs.com/gaoxuerong123/p/8455726.html
时间： 2024-10-18 05:08:51