CSS导航栏下拉菜单的实例代码

最近整理了CSS导航栏及弹窗,具体如下:

CSS导航

先来看下效果:

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html

    head

        title>Insert your titletitle

        meta charset="utf-8"

        style

            body{ 

                font-size:12px; 

            

               

            #discuss{ 

                width:990px; 

                margin:0 auto; 

            

            #mt{ 

                /*高度:30px,边框,上边框,背景颜色*/ 

                height:30px; 

                border:1px solid #ddd; 

                border-top:2px solid #9d9d9d; 

                background:#F7F7F7; 

            

            #discuss-content{ 

                border-bottom:1px solid #ddd; 

                padding-bottom:2px; 

            

   

            #discuss-datas{ 

                width:990px; 

            

   

            #discuss-datas thead td{ 

                /*加粗,上下内边距,下边框,文本居中对齐*/ 

                font-weight:bold; 

                padding:5px 0; 

                border-bottom:1px solid #ddd; 

                text-align:center; 

                color:#666; 

            

   

            /*处理 .col1 的样式 (每行第一列的效果)*/ 

            #discuss-datas td.col1{ 

                width:620px; 

                text-align:left; 

            

               

            /*内容行中所有的列*/ 

            #discuss-datas tbody td{ 

                /*虚线下边框,上下内边距,文本水平居中对齐,文本颜色*/ 

                border-bottom:1px dotted #ddd; 

                padding:5px 0; 

                text-align:center; 

                color:#9c9a9c; 

            

   

            /*处理所有超链接*/ 

            #discuss a{ 

                color:#005aa0; 

                text-decoration:none; 

            

            #discuss a:hover{ 

                text-decoration:underline; 

            

   

            /*晒,论 两幅图*/ 

            #discuss-datas b{ 

                /*宽度,高度,背景属性*/ 

                padding-left:21px; 

                padding-bottom:2px; 

                padding-top:3px; 

                background-image:url(../Images/iconlist_1.png); 

                background-repeat:no-repeat; 

                margin-right:5px; 

            

            b.shai{ 

                background-position:-110px -220px; 

            

            b.lun{ 

                background-position:-152px -220px; 

            

   

            /*2017-01-09 浮动练习*/ 

            #mt a{ 

                float:left; 

                width:100px; 

                height:30px; 

                text-align:center; 

                line-height:30px; 

            

            #mt a.current{ 

                /*左右上边框,背景颜色,文本颜色*/ 

                border:1px solid #ddd; 

                border-bottom:none; 

                border-top:2px solid #E4393C; 

                background-color:#fff; 

                color:#E4393C; 

                /*位置上调:margin-top 给负值*/ 

                margin-top:-6px; 

                height:35px; 

                line-height:35px; 

            

            #extra p{margin:0;} 

            /*方案1*/ 

            /*#extra p.new{ 

                float:left; 

            

            #extra p.total{ 

                float:right; 

            

            #extra{ 

                overflow:hidden; 

            }*/ 

   

            /*方案2*/ 

            #extra p.total{ 

                float:right; 

            

        style

    head

    body

        
 

        
 

        div id="discuss"

            
 

            div id="mt"

                a href="#">网友讨论圈a

                a href="#" class="current">晒单帖a

                a href="#">讨论帖a

                a href="#">圈子帖a

                a href="#">问答帖a

            div

            
 

            div id="discuss-content"

                
 

                table id="discuss-datas"

                    thead

                        tr

                            td class="col1">主题td

                            td>回复/浏览td

                            td>作者td

                            td>时间td

                        tr

                    thead

                    tbody

                        tr

                            td class="col1"

                                b class="shai">b

                                a href="#"

                                    好大一瓶,不错 

                                a

                            td

                            td>0/0td

                            td

                                a href="#">2001年冬天a

                            td

                            td

                                2011-11-11 11:11:11 

                            td

                        tr

                        tr

                            td class="col1"

                                b class="lun">b

                                a href="#"

                                    好大一瓶,不错 

                                a

                            td

                            td>0/0td

                            td

                                a href="#">2001年冬天a

                            td

                            td

                                2011-11-11 11:11:11 

                            td

                        tr

                        tr

                            td class="col1"

                                b class="shai">b

                                a href="#"

                                    好大一瓶,不错 

                                a

                            td

                            td>0/0td

                            td

                                a href="#">2001年冬天a

                            td

                            td

                                2011-11-11 11:11:11 

                            td

                        tr

                        tr

                            td class="col1"

                                b class="lun">b

                                a href="#"

                                    好大一瓶,不错 

                                a

                            td

                            td>0/0td

                            td

                                a href="#">2001年冬天a

                            td

                            td

                                2011-11-11 11:11:11 

                            td

                        tr

                    tbody

                table

                
 

                div id="extra"

                    p class="total"

                        共900个话题 

                        a href="#">浏览全部话题a

                    p

                    p class="new"

                        有问题与其他用户讨论 

                        a href="#">[发表帖子]a

                    p

                div

            div

        div

    body

html

最后效果图:

商城导航:

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html

    head

        title>Insert your titletitle

        meta charset="utf-8"

        style

            #nav{ 

                /*宽度,高度,背景颜色,水平居中对齐*/ 

                width:990px; 

                height:40px; 

                background-color:#E64346; 

                margin:0 auto; 

            

            #nav p{ 

                /*取消默认margin,宽度,高度,背景颜色*/ 

                margin:0; 

                width:210px; 

                height:40px; 

                background-color:#CD2A2C; 

            

            #nav>p>a{ 

                /*左浮动,高度,行高,文字:加粗,大小,颜色,取消下划线*/ 

                float:left; 

                height:40px; 

                line-height:40px; 

                font-weight:bold; 

                font-size:14px; 

                color:#fff; 

                text-decoration:none; 

                padding-left:15px; 

            

            #nav>p>b{ 

                /*右浮动,宽度,高度,背景,位置*/ 

                float:right; 

                width:20px; 

                height:20px; 

                background:url(../Images/iconlist_2.png) no-repeat -65px 0; 

                margin:10px 10px 0 0; 

            

   

            #nav>p{ 

                float:left; 

            

            #nav>ul{ 

                float:left; 

                margin:0; 

                padding:0; 

                list-style:none; 

            

            #nav>ul li{ 

                float:left; 

            

            #nav>ul li a{ 

                /*宽度,高度,行高,文本:水平居中,大小,颜色,下划线,加粗*/ 

                float:left; 

                width:100px; 

                height:40px; 

                line-height:40px; 

                text-align:center; 

                font-size:14px; 

                color:#fff; 

                text-decoration:none; 

                font-weight:bold; 

            

            #nav>ul li a:hover{ 

                background-color:#BD2A2C; 

            

   

            #container{ 

                width:990px; 

                min-height:200px; 

                margin:0 auto; 

            

   

            #cate_box{ 

                margin:0; 

                padding:0; 

                list-style:none; 

   

                /*宽度,高度,背景颜色,左右下边框*/ 

                width:210px; 

                min-height:400px; 

                background-color:#FAFAFA; 

                border:2px solid #CD2A2C; 

                border-top:none; 

                box-sizing:border-box; 

                /*上内边距*/ 

                padding-top:5px; 

            

            #cate_box>li{ 

                /*左内边距,上下内边距,宽度,下边框(白色)*/ 

                padding:5px 0 5px 10px; 

                width:196px; 

                box-sizing:border-box; 

                border-bottom:1px solid #fff; 

                border-top:1px solid transparent; 

            

            #cate_box li:hover{ 

                border-top-color:#ddd; 

                border-bottom-color:#ddd; 

                background-color:#fff; 

            

            #cate_box li>a{ 

                color:#333; 

                text-decoration:none; 

                font-size:14px; 

            

        style

    head

    body

        nav id="nav"

            p

                a href="#">全部商品分类a

                b>b

            p

            ul

                li

                    a href="#">首页a

                li>  

                li

                    a href="#">服装城a

                li>  

                li

                    a href="#">食品a

                li>  

                li

                    a href="#">团购a

                li>  

                li

                    a href="#">夺宝岛a

                li>  

                li

                    a href="#">闪购a

                li>  

                li

                    a href="#">金融a

                li>  

            ul

        nav

        div id="container"

            ul id="cate_box"

                li

                    a href="#">图书、音像、数字商品a

                li

                li

                    a href="#">家用电器a

                li

            ul

        div

    body

html

导航列表弹框效果:

初始状态:

鼠标悬停时:

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html

    head

        title>Insert your titletitle

        meta charset="utf-8"

        style

            #my_jd{ 

                width:100px; 

                height:30px; 

                text-align:center; 

                line-height:30px; 

                border:1px solid #000; 

                background-color:#fff; 

                /*相对定位:配合 #menu 的绝对定位*/ 

                position:relative; 

                cursor:pointer; 

            

            #menu{ 

                width:400px; 

                height:100px; 

                background-color:#fff; 

                border:1px solid #000; 

                /*绝对定位*/ 

                position:absolute; 

                top:30px; 

                left:-1px; 

                /*隐藏*/ 

                display:none; 

                   

            

            #my_jd:hover #menu{ 

                display:block; 

            

            #my_jd:hover #line{ 

                width:100px; 

                position:absolute; 

                border-top:1px solid #fff; 

            

        style

    head

    body

        div id="my_jd"

            我的京东 

            
 

            div id="menu"

                模拟我的京东弹出菜单 

            div

            div id="line">div

        div

    body

html

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