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IT修真院·坑乎 | Java(后端),CSS(前端),JavaScript(前端),PM(产品经理),UI(交互设计),QA(测试),Android(安卓APP),iOS(苹果APP),OP(运维),Python(后端)日常在线问答学习平台

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如果使用bootstrap的折叠模拟下拉菜单，如何让他在一次点击事件只显示一个？

0

1

bottstrap

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

.second-line {
    padding-right: 30px;
}
#downlist {
    list-style: none;
}
.down-line {
    position: relative;
    display: inline-block;
    margin: 10px auto; 
}
.down-line ul {
    position: absolute;
    z-index: 1;
    width: 100%;
}
.down-line button {
    display: inline-flex;
    align-items: center;
    padding: 5px 5px;
    border: 2px solid #f2f2f2;
    font-size: .14rem;
    color: #999999;
}
/* 右侧下拉图标 */
.down-line button p {
    display: inline-block;
    width: 22px;
    height: 26px;
    margin-left: 25px;
    border-radius: 5.5%;
    background: #1d7ad9;
}
.down-line button p::after {
    content: "";
    display: inline-block;
    width: 10px;
    height: 6px;
    border-top: 6px solid white;
    border-right: 5px solid transparent;
    border-left: 5px solid transparent; 

}
/* 下拉选框样式 */
#downlist {
    border: 1px solid #f2f2f2;
    border-top: none;  
}
#downlist li {
    padding-top: 5px;
    padding-bottom: 5px; 
    background: white;
}
#downlist a {
    color: #888888 !important;
    text-decoration: none;
}
#downlist li:hover {
    background: #f2f2f2;
}

<div class="row forth-line align-items-center">
                    <div class="col-sm-10">
                        <input class="circlebox" type="radio" id="material1" name="boxtype">
                        <label for="material1">三层A瓦优质</label>
                        <input class="circlebox" type="radio" id="material2" name="boxtype">
                        <label for="material2">三层A瓦优质</label>
                        <input class="circlebox" type="radio" id="material3" name="boxtype">
                        <label for="material3">三层A瓦优质</label>
                        <input class="circlebox" type="radio" id="material4" name="boxtype">
                        <label for="material4">三层A瓦优质</label>
                        <input class="circlebox" type="radio" id="material5" name="boxtype">
                        <label for="material5">三层A瓦优质</label>
                    </div>
                    <div class="col-sm-2 text-right">
                        <div class="down-line">
                            <button data-toggle="collapse" data-target="#downlist3">
                                查看详情
                                <p></p>
                            </button>
                            <ul id="downlist3" class="collapse text-center">
                                <li>
                                    <a href="#">emmmm</a>
                                </li>
                                <li>
                                    <a href="#">emmmm</a>
                                </li>
                                <li>
                                    <a href="#">emmmm</a>
                                </li>
                            </ul>

                        </div>
                    </div>
                </div>
            </div>

该问题已被官方收录

安装ruby和sass时，无法添加源。

1

1

Sass

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 图片

class="cursor-pointer"> 文本

该问题已被官方收录

sass的default！真正作用，继承，混合，占位符如何选择

0

1

Sass

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 图片

class="cursor-pointer"> 文本

该问题已被官方收录

表格的单元格比例问题

0

1

布局

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

table {
    width: 100%;
    table-layout: fixed;
    font-size: 12px;
    color: #969696;
}

该问题已被官方收录

背景图片为何引用失败

0

1

背景图片属性

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

.login{
    display: flex;
    flex-flow: column;
    justify-content: center;
    align-items: center;
    width: 100vw;
    height: 100vh;
    background-image: url(\img\login\login-backimg.jpg);
    background-repeat: round;
  }

该问题已被官方收录

使三个样式，同时出现hover效果

3

1

hover

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

.circular+.p-1:hover {
    background-color: #ff7f02;
    color: #ff7f02;
}

该问题已被官方收录

响应式导航栏的下拉框会把下方的轮播图遮盖掉

1

1

响应式

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

<nav class="navbar navbar-default navbar-fixed-top" role="navigation">
  <div class="container">
    <div class="navbar-header">
      <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#navbar-menu">
        <span class="sr-only">切换导航</span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      <span class="icon-bar"></span>
      </button>
      <a href="#" class="navbar-brand nav-title">YinyouPoet</a>
    </div>
    <div class="collapse navbar-collapse" id="navbar-menu">
      <ul class="nav navbar-nav navbar-right">
        <li class="cative"><a href="#">Home</a></li>
        <li class="cative"><a href="#">About</a></li>
        <li class="cative"><a href="#">Portfolio</a></li>
        <li class="cative"><a href="#">Contact</a></li>
      </ul>
    </div>
  </div>
</nav>

该问题已被官方收录

F12，再不同的缩放比例下，列表框的下拉框的大小不一

1

1

开发者工具

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 图片

class="cursor-pointer"> 文本

该问题已被官方收录

折叠按钮点击范围精准化

1

1

通用属性属性通用

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

html{
    font-size: 312.5%;
}
body{
    margin: 0;
    font-size: initial;
    background-color: #FFFFFF;
}
p{
    margin-bottom: 0;
}
ul{
    padding: 0;
    margin: 0;
    list-style: none;
}
li{
    padding: 0;
    margin: 0;
    list-style: none;
}
header{
    
    background-color: #F9F9F9;
}
.top-bg{
    background-color: #1D7AD9;
}
.left-col{
    line-height: .8rem;
    font-size: .14rem;
    color: #FFFFFF;
}
.top-btn{
    padding: 0 .45rem;
    line-height: .8rem;
    font-size: .16rem;
    border: none;
    outline: none !important;
    color: #FFFFFF;
    background-color: #1D7AD9;
}
.top-btn:hover{
    color: black;
    background: #FFFFFF;
}
@media (max-width:575px){
    .header-btn{
        display: flex;
        justify-content: space-around;
    }
}
.header-btnn{
    text-align: right;
}
.dropdown{
    margin: 20px 20px 20px auto;
    padding: 6px;
    display: none;
    outline: none !important;
    border-radius: 6%;
    border: none;
    background-color: #1D7AD9;
}
.line{
    padding: 6px 0;
    width: 22px;
    height: 21px;
    border-top: 3px solid #FFFFFF;
    border-bottom: 3px solid #FFFFFF;
    background: #FFFFFF content-box;
}
@media (max-width:575px){
    .end{
        
    }
    .navv{
        
    }
    .dropdown{
        display: block;
    }
    .header-btnn{
        display: none;
    }
    .bottom-btn{
        margin: .4rem 0 !important;
        border-radius: 0% !important;
    }
    .navv:hover .header-btnn{
        display: flex;
        flex-direction: column;
    }
}
.bottom-btn{
    margin: .4rem 0 .4rem .6rem;
    padding: 0 .45rem;
    line-height: .8rem;
    font-size: .16rem;
    border: none;
    border-radius: 6%;
    outline: none !important;
    color: black;
    background-color: #FFFFFF;
    box-shadow: 0 1px 1px -1px;
}
.bottom-btn:hover{
    color: #FFFFFF;
    background: #1D7AD9;
}
.main-top{
    display: flex;
    justify-content: flex-end;
}
.carton-box{
    position: relative;
    margin-top: .48rem;
    border-top: .06rem solid #CCCCCC;
    font-size: .18rem;
    color: #CCCCCC;
}
.carton-box::before{
    position: absolute;
    content: "1";
    top: -.18rem;
    left: 50%;
    margin-left: -.15rem;
    text-align: center;
    line-height: .3rem;
    font-size: .14rem;
    color: #FFFFFF;
    width: .3rem;
    border-radius: 50%;
    background: #CCCCCC;
}
.carton{
    margin: .5rem .38rem;
}
.carton-box:hover{
    color: #FF7F02 !important;
    border-color: #FF7F02 !important;
}
.carton-box:hover::before{
    background-color: #FF7F02 !important;
}
.title-bottom{
    margin-bottom: .3rem;
}
.main-title{
    padding-left: .09rem;
    font-size: .22rem;
    color: #333333;
    border-left: .04rem solid #1D7AD9;
}
.bg-box{
    display: flex;
    align-items: center;
    line-height: .8rem;
    font-size: .18rem;
    color: #1D7AD9;
    background: #F4F4F4;
    border: .01rem solid #E7E7E7;
}
.box{
    margin: 0 .2rem;
    width: .38rem;
    height: .32rem;
    background: url(../img/666.png) no-repeat 0 1px;
}
label{
    margin-bottom: 0 !important;
}
.main-option{
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 .2rem 0 .46rem;
    border: .01rem solid #E7E7E7;
    border-top: none;
    border-bottom: none;
    background: #FBFCFF;
}
.option-left{
    display: flex;
    line-height: 1.2rem;
}
.radio{
    display: flex;
    align-items: center;
    margin-right: .6rem;
    font-size: .18rem;
    color: #666666;
}
.radio-left{
    margin-right: .2rem;
}
.option-button{
    display: flex;
    position: relative;
    align-items: center;
    height: .7rem;
    font-size: .14rem;
    color: #999999;
    background-color: #FFFFFF;
    border: .01rem solid #E8E8E8;
    outline: none !important;
}
.rectangle{
    display: flex;
    justify-content: center;
    align-items: center;
    margin-left: .3rem;
    width: .4rem;
    height: .45rem;
    background-color: #1D7AD9;
}
.triangle{
    width: 0;
    height: 0;
    border-top: .15rem solid #FFFFFF;
    border-left: .13rem solid transparent;
    border-right: .13rem solid transparent;
}
.item{
    line-height: .7rem;
    padding-left: .12rem;
    
}
.item:hover{
    background: #1D7AD9;
}
.dropdown-xq{
    display: none;
    position: absolute;
    top: .7rem;
    left: 0;
    right: 0;
    text-align: left;
    font-size: .14rem;
    color: #FFFFFF;
    background-color: #999999;
    z-index: 1;
}
.option-button:hover .dropdown-xq{
    display: block;
}
.mg{
    padding: .3rem .2rem .3rem .46rem;
}
.second-box{
    margin: 0 .1rem;
    width: .45rem;
    height: .45rem;
    background: url(../img/666.png) no-repeat 1px -33px;
}
.size-left{
    display: flex;
}
.io{
    margin-right: 0;
    padding: 1px 0;
}
.ox{
    padding: 5px 0;
}
.number{
    width: 70px;
    height: 30px;
    font-size: .26rem;
    outline: none;
}
.dd{
    display: block;
    font-size: .32rem;
    color: #666666;
}
.number-box{
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    margin-right: .4rem;
    height: 1.4rem;
}
.third{
    background: url(../img/666.png) no-repeat 5px -74px;
}
.on{
    line-height: 2rem;
}
.main-bottom{
    display: flex;
    justify-content: center;
    align-items: center;
    height: 2.86rem;
    border: .01rem solid #E8E8E8;
}
.red-button{
    width: 2rem;
    height: .6rem;
    border: none;
    border-radius: .2rem;
    outline: none !important;
    font-size: .32rem;
    color: #FFFFFF;
    background: #E15053;
}
footer{
    margin-top: 1rem;
    padding-top: .6rem;
    background: #F9F9F9;
}
.footer-word{
    font-size: .28rem;
    font-weight: 600;
    color: #999999;
}

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>定制箱</title>
    <!-- 新 Bootstrap4 核心 CSS 文件 -->
    <link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/4.1.0/css/bootstrap.min.css">
    <!-- jQuery文件。务必在bootstrap.min.js 之前引入 -->
    <script src="https://cdn.staticfile.org/jquery/3.2.1/jquery.min.js"></script>
    <!-- popper.min.js 用于弹窗、提示、下拉菜单 -->
    <script src="https://cdn.staticfile.org/popper.js/1.12.5/umd/popper.min.js"></script>
    <!-- 最新的 Bootstrap4 核心 JavaScript 文件 -->
    <script src="https://cdn.staticfile.org/twitter-bootstrap/4.1.0/js/bootstrap.min.js"></script>
    <link rel="stylesheet" type="text/css" href="../css/task10.css">
</head>
<body>
    <header>
        <div class="top-bg">
             <div class="container">
                 <div class="row">
                     <div class="col-md-6 col-sm-6">
                         <p class="left-col">客服热线：010-594-78634</p>
                     </div>
                     <div class="col-md-6  col-sm-6 text-right">
                         <div class="header-btn">
                             <button class="top-btn">登录</button>
                             <button class="top-btn">注册</button>
                         </div>
                     </div>
                 </div>
             </div>
         </div>
         <div class="container">
             <div class="row">
                 <div class="col-12 end">
                     <nav class="navv">
                         <button class="dropdown">
                             <div class="line"></div>
                         </button>
                         <div class="header-btnn">
                             <button class="bottom-btn">首页</button>
                             <button class="bottom-btn">在线定制</button>
                             <button class="bottom-btn">标准箱</button>
                             <button class="bottom-btn">品质保障</button>
                         </div>
                     </nav>
                 </div>
             </div>
         </div>
    </header>
    <main>
        <div class="container">
            <div class="row">
                <div class="col-12 main-top">
                     <div class="carton-box">
                         <p class="carton">1.定制纸箱</p>
                     </div>
                     <div class="carton-box">
                         <p class="carton">2.选择数量</p>
                     </div>
                     <div class="carton-box">
                         <p class="carton">3.上传附件</p>

                     </div>
                     <div class="carton-box">
                         <p class="carton">4.确认下单</p>
                     </div>
                 </div>
             </div>
             <div class="row">
                 <div class="col-12 title-bottom">
                     <strong class="main-title">请您按照以下步骤来定制您的纸箱</strong>
                 </div>
            </div>
        </div>
        <div class="container">
             <div class="row">
                 <div class="col-12">
                     <div class="bg-box">
                         <span class="box"></span>
                         <strong>选择箱型</strong>
                     </div>
                 </div>
             </div>
         </div>
         <div class="container">
             <div class="row">
                 <div class="col-12">
                     <div class="main-option">
                         <div class="option-left">
                             <label class="radio"><input class="radio-left" type="radio" name="optradio">对口箱</label>
                             <label class="radio"><input class="radio-left" type="radio" name="optradio">飞机盒</label>
                             <label class="radio"><input class="radio-left" type="radio" name="optradio">天地盖</label>
                         </div>
                         <button class="option-button">
                             <p class="button-word">查看详情</p>
                             <div class="rectangle">
                                 <div class="triangle"></div>
                             </div>
                             <ul class="dropdown-xq">
                                 <li class="item">对口箱</li>
                                 <li class="item">飞机盒</li>
                                 <li class="item">天地盖</li>
                             </ul>
                         </button>
                     </div>
                 </div>
             </div>
         </div>
         <div class="container">
             <div class="row">
                 <div class="col-12">
                     <div class="bg-box">
                         <span class="second-box"></span>
                         <strong>确定尺寸</strong>
                     </div>
                 </div>
             </div>
         </div>
         <div class="container">
             <div class="row">
                 <div class="col-12">
                     <div class="main-option mg">
                         <div class="size-left">
                             <div class="number-box ox">
                                 <label class="radio io"><input class="radio-left" type="radio" name="optradio">外径</label>
                                 <label class="radio io"><input class="radio-left" type="radio" name="optradio">内径</label>
                             </div>
                             <div class="number-box">
                                 <label class="dd">长<input type="number" class="number" placeholder="输入数字" oninput="if(value.length>5)value=value.slice(0,5)">mm</label>
                                 <label class="dd">长<input type="number" class="number" placeholder="输入数字" oninput="if(value.length>5)value=value.slice(0,5)">mm</label>
                             </div>
                             <div class="number-box">
                                 <label class="dd">宽<input type="number" class="number" placeholder="输入数字" oninput="if(value.length>5)value=value.slice(0,5)">mm</label>
                                 <label class="dd">宽<input type="number" class="number" placeholder="输入数字" oninput="if(value.length>5)value=value.slice(0,5)">mm</label>
                             </div>
                             <div class="number-box">
                                 <label class="dd">高<input type="number" class="number" placeholder="输入数字" oninput="if(value.length>5)value=value.slice(0,5)">mm</label>
                                 <label class="dd">高<input type="number" class="number" placeholder="输入数字" oninput="if(value.length>5)value=value.slice(0,5)">mm</label>
                             </div>
                         </div>
                         <button class="option-button">
                             <p class="button-word">查看详情</p>
                             <div class="rectangle">
                                 <div class="triangle"></div>
                             </div>
                             <ul class="dropdown-xq">
                                 <li class="item">外径</li>
                                 <li class="item">内径</li>
                             </ul>
                         </button>
                     </div>
                 </div>
             </div>
         </div>
         <div class="container">
             <div class="row">
                 <div class="col-12">
                     <div class="bg-box">
                         <span class="second-box third"></span>
                         <strong>选择材质</strong>
                     </div>
                 </div>
             </div>
         </div>
         <div class="container">
             <div class="row">
                 <div class="col-12">
                     <div class="main-option">
                         <div class="option-left on">
                             <label class="radio"><input class="radio-left" type="radio" name="optradio">三层A瓦优质</label>
                             <label class="radio"><input class="radio-left" type="radio" name="optradio">三层A瓦优质</label>
                             <label class="radio"><input class="radio-left" type="radio" name="optradio">三层A瓦优质</label>
                             <label class="radio"><input class="radio-left" type="radio" name="optradio">三层A瓦优质</label>
                             <label class="radio"><input class="radio-left" type="radio" name="optradio">三层A瓦优质</label>
                         </div>
                         <button class="option-button">
                             <p class="button-word">查看详情</p>
                             <div class="rectangle">
                                 <div class="triangle"></div>
                             </div>
                             <ul class="dropdown-xq">
                                 <li class="item">三层A瓦优质</li>
                                 <li class="item">三层A瓦优质</li>
                                 <li class="item">三层A瓦优质</li>
                                 <li class="item">三层A瓦优质</li>
                                 <li class="item">三层A瓦优质</li>
                             </ul>
                         </button>
                     </div>
                 </div>
             </div>
             <div class="row">
                 <div class="col-12">
                     <div class="main-bottom">
                     <button class="red-button">
                         下一步
                     </button>
                    </div>
                 </div>
             </div>
         </div>
     </main>
     <footer>
         <div class="container">
             <div class="row">
                 <div class="col-md-4">
                     <p class="footer-word">51包装网——纸箱包装首选服务平台</p>
                 </div>
                 <div class="col-md-4">
                     <p>
                         <a class="about">关于我们</a>  
                         <a class="about">配送流程</a>  
                         <a class="about">联系我们</a>
                     </p>
                     <p>
                         <a class="about">下单指南</a>  
                         <a class="about">媒体介绍</a>
                     </p>
                 </div>
                 <div class="col-md-4">
                     <div>
                         <p>TEL:400-0000-000</p>
                         <p>企业QQ：123456789</p>
                         <p>微信号：XXXXXXX</p>
                     </div>
                     <div></div>
                 </div>
             </div>
         </div>
     </footer>
</body>
</html>

该问题已被官方收录

任务七右上角的音频标签，无法随着样式进行修改

1

1

属性属性

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <link rel="stylesheet" type="text/css" href="./task7-2.css">
</head>

<body>
    <header>
        <!-- 头部 -->
        <button>
            <!-- 头部左边按钮外部盒子 -->
            <div></div>
            <!-- 左边按钮 -->
        </button>
        <span>投票</span>
        <!-- 中间文字 -->
        <button>
            <!-- 右边关闭按钮外部盒子 -->
            <div></div>
            <!-- 右边关闭按钮 -->
        </button>
    </header>
    <main>
        <!-- 中间 -->
        <div>
            <!-- 上面的播放选项盒子 -->
            <span>发言讨论结束，大家请投票</span>
            <div>
                <!-- 外部圆 -->
                <div>
                    <!-- 内部三角形 -->
                    <audio controls>
                        <!-- 音频播放器 -->
                        <source src="./css-7/task7/财富自由.mp3"></audio>
                </div>
            </div>
        </div>
        <span>点击得票数最多人的头像</span>
        <!-- 页面说明文字 -->
        <div>
            <!-- 下方多个选项外盒子 -->
            <button>
                <!-- 第一个选项盒子 -->
                <div>水民</div>
                <!-- 游戏身份 -->
                <div>1号</div>
                <!-- 游戏号码 -->
            </button>
            <button>
                <!-- 第一个选项盒子 -->
                <div>水民</div>
                <!-- 游戏身份 -->
                <div>2号</div>
                <!-- 游戏号码 -->
            </button>
            <button>
                <!-- 第一个选项盒子 -->
                <div>警察</div>
                <!-- 游戏身份 -->
                <div>3号</div>
                <!-- 游戏号码 -->
            </button>
            <button>
                <!-- 第一个选项盒子 -->
                <div>法官</div>
                <!-- 游戏身份 -->
                <div>4号</div>
                <!-- 游戏号码 -->
            </button>
            <button>
                <!-- 第一个选项盒子 -->
                <div>狙击手</div>
                <!-- 游戏身份 -->
                <div>5号</div>
                <!-- 游戏号码 -->
            </button>
            <button>
                <!-- 第一个选项盒子 -->
                <div>医生</div>
                <!-- 游戏身份 -->
                <div>6号</div>
                <!-- 游戏号码 -->
            </button>
            <button>
                <!-- 第一个选项盒子 -->
                <div>杀手</div>
                <!-- 游戏身份 -->
                <div>7号</div>
                <!-- 游戏号码 -->
            </button>
            <button>
                <!-- 第一个选项盒子 -->
                <div>水民</div>
                <!-- 游戏身份 -->
                <div>8号</div>
                <!-- 游戏号码 -->
            </button>
            <button>
                <!-- 第一个选项盒子 -->
                <div>水民</div>
                <!-- 游戏身份 -->
                <div>9号</div>
                <!-- 游戏号码 -->
            </button>
            <button>
                <!-- 第一个选项盒子 -->
                <div>水民</div>
                <!-- 游戏身份 -->
                <div>10号</div>
                <!-- 游戏号码 -->
            </button>
            <button>
                <!-- 第一个选项盒子 -->
                <div>水民</div>
                <!-- 游戏身份 -->
                <div>11号</div>
                <!-- 游戏号码 -->
            </button>
            <button>
                <!-- 第一个选项盒子 -->
                <div>水民</div>
                <!-- 游戏身份 -->
                <div>12号</div>
                <!-- 游戏号码 -->
            </button>
        </div>
    </main>
    <footer>
        <!-- 底部盒子 -->
        <button>
            <!-- 底部按钮 -->
            <span>投死</span>
            <!-- 底部中间字体 -->
        </button>
    </footer>
</body>

</html>
html{
    font-size: 62.5%;
}
body{
    margin: 0;
    font-size: 1.6rem;
}
header{
    height: 4.8rem;
    background-color: #29BDE0;
}

去第页

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