Bar navigasi pembangunan PHP menu lungsur sekunder kod lengkap

Petua: Kod dalam editor kod di sebelah kanan adalah untuk menunjukkan kesan, dan lebar serta kandungan telah dipermudahkan

kod berikut Anda boleh menyalinnya secara setempat dan menjalankannya, dan kesannya akan menjadi lebih ketara


<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>PHP中文网</title>
    <style>
        li{
            list-style-type:none;
        }
        #menu {
            width:950px;
            margin:30px auto 0px;
            height:45px;
            background-color: #030e11;
        }
        #menu li {
            float:left;
            width:109px;
            line-height:39px;
            text-align:center;
            position:relative;
            border:none;
        }
        #menu li a {
            font-size:16px; color: #e6f8e9;
            display:block;
            outline:0;
            text-decoration:none; }
        #menu li:hover a {
            color: #ff0000;           /*导航栏文字颜色 */
 }
        #menu li:hover .dropdown_1column {
            left:0px;
            top:38px;
        }
        .dropdown_1column{                /* 下拉菜单边框颜色*/
 margin:0px auto;
            float:left;
            position:absolute;
            left:-999em;
            text-align:left;
            border:1px solid #066591;
            border-top:none;
            background:#F4F4F4;
            width: 140px;
        }
        #menu li:hover div a {    /* 下拉菜单文字颜色*/
 font-size:12px
 ;color:#444;
        }
        #menu li:hover div a:hover{color:#21910e;}   /*下拉菜单鼠标停留颜色*/
 #menu li ul {
            list-style:none;padding:10px 5px;
            margin:0;
        }
        #menu li ul li {
            font-size:12px;
            line-height:26px;
            position:relative;
            padding:0;margin:0;
            float:none;
            text-align:left;
            width:130px;
        }
        #menu li ul li:hover {
            background:none;
            border:none;padding:0;
            margin:0;
        }
    </style>
</head>
<body>
<div id="menu">
    <ul>
        <li><a href=""  class="nodrop">首 页</a></li>
        <li><a href="" class="drop">最火下载站</a>
            <div class="dropdown_1column">
                <div class="col_1">
                    <ul class="simple">
                        <li><a href="#">网站建设</a></li>
                        <li><a href="#">导航条代码</a></li>
                        <li><a href="#">最火下载站</a></li>
                        <li><a href="#">电子商务</a></li>
                        <li><a href="#">网站制作</a></li>
                    </ul>
                </div>
            </div>
        </li>
        <li><a href="#" class="drop">网站建设</a>
            <div class="dropdown_1column">
                <div class="col_1">
                    <ul class="simple">
                        <li><a href="#">网站建设</a></li>
                        <li><a href="#">导航条代码</a></li>
                        <li><a href="#">最火下载站</a></li>
                        <li><a href="#">网站推广</a></li>
                        <li><a href="#">网站优化</a></li>
                        <li><a href="#">网站制作</a></li>
                    </ul>
                </div>
            </div>
        </li>
        <li><a href="#" class="drop">网络营销</a>
            <div class="dropdown_1column">
                <div class="col_1">
                    <ul class="simple">
                        <li><a href="#">网站建设</a></li>
                        <li><a href="#">导航条代码</a></li>
                        <li><a href="#">最火下载站</a></li>
                        <li><a href="#">电子商务</a></li>
                        <li><a href="#">网站推广</a></li>
                        <li><a href="#">网站优化</a></li>
                        <li><a href="#">网站制作</a></li>
                    </ul>
                </div>
            </div>
        </li>
        <li><a href="#" class="drop">网络营销</a>
            <div class="dropdown_1column">
                <div class="col_1">
                    <ul class="simple">
                        <li><a href="#">网站建设</a></li>
                        <li><a href="#">导航条代码</a></li>
                        <li><a href="#">最火下载站</a></li>
                        <li><a href="#">电子商务</a></li>
                        <li><a href="#">网站推广</a></li>
                        <li><a href="#">网站制作</a></li>
                    </ul>
                </div>
            </div>
        </li>
           <li><a href="#"  class="nodrop">关于我们</a></li>
           <li><a href="#"  class="nodrop">联系我们</a></li>
    </ul>
</div>
</body>



Meneruskan pembelajaran
||
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>导航栏加下拉菜单</title> <style> li{ list-style-type:none; } #menu { width:370px; margin:30px auto 0px; height:45px; background-color: #030e11; } #menu li { float:left; width:92px; line-height:39px; text-align:center; position:relative; border:none; } #menu li a { font-size:16px; color: #e6f8e9; display:block; outline:0; text-decoration:none; } #menu li:hover a { color: #ff0000; /*导航栏文字颜色 */ } #menu li:hover .dropdown_1column { left:0px; top:38px; } .dropdown_1column{ /* 下拉菜单边框颜色*/ margin:0px auto; float:left; position:absolute; left:-999em; text-align:left; border:1px solid #066591; border-top:none; background:#F4F4F4; width: 140px; } #menu li:hover div a { /* 下拉菜单文字颜色*/ font-size:12px ;color:#444; } #menu li:hover div a:hover{color:#21910e;} /*下拉带单鼠标停留颜色*/ #menu li ul { list-style:none;padding:10px 5px; margin:0; } #menu li ul li { font-size:12px; line-height:26px; position:relative; padding:0;margin:0; float:none; text-align:left; width:130px; } #menu li ul li:hover { background:none; border:none;padding:0; margin:0; } </style> </head> <body> <div id="menu"> <ul> <li><a href="" class="nodrop">首 页</a></li> <li><a href="" class="drop">最火下载站</a> <div class="dropdown_1column"> <div class="col_1"> <ul class="simple"> <li><a href="#">网站建设</a></li> <li><a href="#">导航条代码</a></li> <li><a href="#">最火下载站</a></li> <li><a href="#">电子商务</a></li> <li><a href="#">网站制作</a></li> </ul> </div> </div> </li> <!--   <li><a href="#" class="nodrop">关于我们</a></li>-->    <li><a href="#" class="nodrop">联系我们</a></li> </ul> </div> </body>
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