css和js如何?響應式導覽功能表

來源:互聯網
上載者:User
這篇文章分享給大家的內容是關於css和js如何?響應式導覽功能表,內容很有參考價值,希望可以幫到有需要的小夥伴。

1.響應式導覽功能表

當視口大於640px的時候,導航條會顯示在外,當視口小於768px的時候,導覽功能表需要隱藏起來!
代碼如下:

<!doctype html><html><head>    <meta charset="utf-8"/>    <meta name="viewport" content="width=device-width">    <title>響應式</title>    <link rel="stylesheet" type="text/css" href="demo1.css"/>    <link href="https://cdn.bootcss.com/font-awesome/4.7.0/css/font-awesome.css" rel="stylesheet"></head><body>    <p class="nav">    <p class="pic"></p>        <p class="btn">            <i id="btn" class="fa fa-bars"></i>        </p>        <ul id="menu" class="clearfix">            <li><a href="#">首頁</a></li>            <li><a href="#">產品</a></li>            <li><a href="#">購買</a></li>            <li><a href="#">服務</a></li>            <li><a href="#">聯絡</a></li>                </ul>        </p>        <script type="text/javascript">        var btn=document.getElementById("btn");        var menu=document.getElementById("menu");                btn.onclick=function(){            if(menu.style.display=="block"){                menu.style.display="none";            }            else{                menu.style.display="block";            }                        window.onresize=function(){                var vw=document.documentElement.clientWidth;                if(vw>640){                menu.style.display="block"};            }        }    </script></body></html>

css代碼如下:

body{    margin:0;}.nav{    background-color:black;    width:100%;    position:relative;}.nav ul{    margin:0;    padding:0;    width:80%;    margin:0 auto;}.clearfix:after{    display:block;    content:"";    height:0;    clear:both;    visibility:hidden;}.nav ul li{    list-style:none;    float:left;}.nav ul li a{    color:white;    padding:20px 30px;    display:block;    text-decoration:none;}.nav ul li a:hover{    background-color:red;}.pic{    background:url(logo.jpg) no-repeat;    position:absolute;    top:5px;    left:5px;    width:113px;    height:39px;}.btn{        background-color:#333;    text-align:right;    color:white;    font-size:20px;    padding:10px;    display:none;}@media screen and (max-width:640px){    .nav ul li{        float:none;        text-align:center;    }    .nav ul{        width:100%;    }    .btn{        display:block;    }    .pic{        position:absolute;        left:50%;        margin-left:-56px;    }}
相關文章

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.