网页设计进阶

首页 > 代码库 > 网页设计进阶

2024-08-22 19:35:37 227人阅读

1.一键改变多个div属性

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .item{
            background-color: #dddddd;

        }
        .item:hover{
            color: red;
        }
        /*给不同的子div设置不同的hover属性，即一键给不同的div改变不同的样式*/
        .item:hover .a {
            background-color: yellow;
        }
        .item:hover .b{
            background-color: black;
        }
    </style>
</head>
<body>
    <div class="item">
        <div class="a">222</div>
        <div class="b">bbbb</div>
    </div>
</body>
</html>

View Code

2.给搜索框设置默认字

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <div style="width: 600px;margin: 0 auto">
        <input id="i1" onfocus="Focus();" onblur="Blur();" type="text" value="请输入关键字" />
        <!--onfocus动作，获取焦点-->
        <input type="text" placeholder="关键字"/>
    </div>
    <script>
        function Focus() {
            var tag = document.getElementById(‘i1‘);
            var val = tag.value;
            if(val == ‘请输入关键字‘){
                tag.value = ‘‘;
            }
        }
        function Blur() {
            var tag = document.getElementById(‘i1‘);
            var val = tag.value;
            if(val.length == 0){
                tag.value = "请输入关键字"
            }
        }
    </script>
</body>
</html>

View Code

3.自动删除弹出框

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <div id="s1"></div>
    <input type="button" value="删除" onclick="del();" />

    <script>
        function del() {
            document.getElementById(‘s1‘).innerText = ‘已删除‘;
            setTimeout(function () {
                document.getElementById(‘s1‘).innerText = ‘‘;
            },3000)
        }
    </script>
</body>
</html>

View Code

4.引用图标

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet"  href="font-awesome-4.7.0/css/font-awesome.min.css"/>     #指定rel和href，href是图标文件的路径，包含所有图标，
一般用.min.css这个压缩版

    <style>
        .item{
            background-color: #dddddd;
        }
        .item:hover{
            color: red;
        }
        .item:hover .b{
            background-color: green;
        }
    </style>
</head>
<body>
    <div class="item">
        <div class="a">
            <i class="fa fa-superpowers" aria-hidden="true"></i>
             i标签跟a标签一样，class指定图标

        </div>
        <div class="b">456</div>
    </div>
</body>
</html>

View Code

5.后台管理界面实现

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet"  href="font-awesome-4.7.0/css/font-awesome.min.css"/>
    <style>
        body{
            margin: 0;
        }
        .left{
            float: left;
        }
        .right{
            float: right;
        }
        .pg-header{
            height: 48px;
            background-color: #2459a2;
            color: white;
            line-height: 48px;
            min-width: 600px; # div最小宽度，他等于menu和content宽度之和
        }
        .pg-header .logo{    #左边‘明天你好的属性’
            width: 200px;
            background-color: #204982;
            text-align: center;
        }
        .pg-header .icons{    #右边图标的属性
            padding: 0 20px;  #内边距（图标到div边框的距离）：上下为0，左右为20px
        }
        .pg-header .icons:hover{
            background-color: #204982;
        }
        .pg-header .user{   #右边为用户名属性
            margin-right: 60px;   
            padding: 0 20px;
            color: white;
            height: 48px;
        }
        .pg-header .user:hover{
            background-color: #204982;
        }
        .pg-header .user .a img{   #右边头像的属性，头像div在用户名div内
            height: 40px;width: 40px;margin-top: 4px;border-radius: 50%;
        }
        .pg-header .user .b{   #头像的下拉菜单属性，这里边的文字一般左靠齐
            z-index: 20;
            position: absolute;
            top: 48px;
            right: 0;
            background-color: white;
            color: black;
            width: 160px;
            display: none;  #默认不显示该下拉菜单
            font-size: 14px;
            line-height: 30px;

        }
        .pg-header .user .b a{  #下拉菜单中的文字属性
            padding: 5px;
            color: black;
            text-decoration: none;
        }
        .pg-header .user .b a:hover{
            background-color: #dddddd;
        }
        .pg-header .user:hover .b{
            display: block;
        }
        .pg-header .user .b a{
            display: block;
        }
        .pg-content .menu{  #左边菜单栏属性
            position: absolute;
            top:48px;
            left: 0;
            bottom: 0;
            width: 200px;
            background-color: #dddddd;
        }

        .pg-content .content{
            position: absolute;
            top: 48px;
            right: 0;
            bottom: 0;
            left: 200px;
            overflow: auto;#与position: absolute;联用，就会使左边菜单栏固定在屏幕上
            并且自己也有滚动条
            z-index: 9;
            min-width: 400px;

        }
    </style>
</head>
<body>

    <div class="pg-header">
        <div class="logo left">
            明天你好
        </div>

        <div class="user right" style="position: relative">
            <a class="a" href="#">
                <img src="22.jpg">
            </a>
            <div class="b">
                <a href="#">我的资料</a>
                <a href="#">注销</a>
            </div>
        </div>

        <div class="icons right">
            <i class="fa fa-commenting-o" aria-hidden="true"></i>
            <span>5 </span>
        </div>
        <div class="icons right">
            <i class="fa fa-bell-o" aria-hidden="true"></i>
        </div>

    </div>
    <div class="pg-content">
        <div class="menu left">a</div>
        <div class="content left">
            <!--<div style="position: fixed;bottom:0;right:0;width: 50px;height: 50px;">返回顶部</div>-->
            <!--<div style="position: absolute;bottom:0;right:0;width: 50px;height: 50px;">返回顶部</div>-->
            <div style="background-color: purple">
            <p style="margin: 0;">asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>
            <p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>
            <p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>
            <p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>
            <p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>
            <p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>
            <p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>
            <p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>
            <p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>
            <p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>
            <p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>
            
                </div>
        </div>
    </div>
    <div class="pg-footer"></div>
</body>
</html>

View Code

详细细节见视频day16 后台管理界面实现1-5

网页设计进阶

声明：以上内容来自用户投稿及互联网公开渠道收集整理发布，本网站不拥有所有权，未作人工编辑处理，也不承担相关法律责任，若内容有误或涉及侵权可进行投诉：投诉/举报工作人员会在5个工作日内联系你，一经查实，本站将立刻删除涉嫌侵权内容。

联系
我们

首页 > 代码库 > 网页设计进阶

网页设计进阶

看完仍有疑问？有类似问题直接问程序猿