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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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怎么修改bootstrap框架导航栏的默认link样式

2

2

bottstrap

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

<nav>
    <div class="container">
        <ul class="nav">
            <li class="nav-item">
                <a class="nav-link" href="#">首页</a>
            </li>
            <li class="nav-item">
                <a class="nav-link" href="#">在线定制</a>
            </li>
            <li class="nav-item">
                <a class="nav-link" href="#">标准箱</a>
            </li>
            <li class="nav-item">
                <a class="nav-link" href="#">品质保障</a>
            </li>
        </ul>
    </div>
</nav>

CSS部分

/*导航栏*/
nav{
    height: 8rem;
    background: #f9f9f9;
}
nav>.container{
    height: 100%;
}
.nav{
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: flex-end;
    align-items: center;
}
.nav-link{
    background-color: #fff;
    padding: 1rem 1.4rem;
    margin: 0 1rem;
    border-radius: 2px;
    color: #000;
}
.nav-item:hover .nav-link{
    background: #007bff;
    color: #fff;
}

该问题已被官方收录

纯css的响应式导航栏有什么方法

3

2

导航栏

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

.

该问题已被官方收录

图片不显示

4

2

通用

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

body{
    margin:0;
}


.header{
    position: fixed;
    width:100%;
    height:3rem;
    line-height: 3rem;
    text-align: center;
    background-color: #5fc0cd;
    color:#ffffff; 
    z-index: 1;
}
.back{
    position: absolute;
    left:1.5rem;
    top:0.7rem; 
}

该问题已被官方收录

如何去掉边框和内容的空隙

1

2

边距

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">
    <title>Title</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0,
     <!--minimum-scale=0.5, maximum-scale=2.0, user-scalable=yes"/>
    <script src="//cdn.bootcss.com/jquery/1.11.3/jquery.min.js"></script>
    <link rel="stylesheet" href="//cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap.min.css">
    <script src="//cdn.bootcss.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
    <link rel="stylesheet" href="../css/task7.2.css">
</head>
<body>
<div class="wrap">
    <div class="head">
      <img src="../img/task7.1.1.png" class="catalogue" alt="">
      <span class="vote">投票</span>
      <img src="../img/task7.1.2.png" class="wrong" alt="">
     </div>
    <div class="make">
      <span>发表讨论结果，大家请投票</span>
        <img src="../img/taask7.17.png" alt="">
        <audio src="../audio/财富自由.mp3" controls="controls">
            Your browser does not support the audio element.
        </audio>
    </div>
    <div class="makk">
    </div>
      <p class="cilck">点击票数最多人的头像</p>
    <div class="olk">
      <div class="center">
        <div class="cox">
           <p class="iu">水民</p>
           <p class="ui">一号</p>
            <div class="mxc">
                <img src="../img/task7.7.png"  alt="">
            </div>
        </div>
        <div class="cox">
            <P class="iu">水民</P>
            <p class="ui">2号</p>
            <div class="mxc">
                <img src="../img/task7.7.png"  alt="">
            </div>
        </div>
        <div class="cox">
            <p class="iu">警察</p>
            <p class="ui">3号</p>
            <div class="mxc">
                <img src="../img/task7.7.png"  alt="">
            </div>
        </div>
        <div class="cox">
            <p class="iu">法官</p>
            <p class="ui">4号</p>
            <div class="mxc">
                <img src="../img/task7.7.png"  alt="">
            </div>
        </div>
        <div class="cox">
            <p class="iu">狙击手</p>
            <p class="ui">5号</p>
            <div class="mxc">
                <img src="../img/task7.7.png"  alt="">
            </div>
        </div>
        <div class="cox">
            <p class="iu">医生</p>
            <p class="ui">6号</p>
            <div class="mxc">
                <img src="../img/task7.7.png"  alt="">
            </div>
        </div>
        <div class="cox">
            <p class="iu">杀手</p>
            <p class="ui">7号</p>
            <div class="mxc">
                <img src="../img/task7.7.png"  alt="">
            </div>
        </div>
        <div class="cox">
            <p class="iu">水民</p>
            <p class="ui">8号</p>
            <div class="mxc">
                <img src="../img/task7.7.png"  alt="">
            </div>
        </div>
        <div class="cox">
            <p class="iu">水民</p>
            <p class="ui">9号</p>
            <div class="mxc">
                <img src="../img/task7.7.png"  alt="">
            </div>
        </div>
        <div class="cox">
            <p class="iu">水民</p>
            <p class="ui">10号</p>
            <div class="mxc">
                <img src="../img/task7.7.png"  alt="">
            </div>
        </div>
        <div class="cox">
            <p class="iu">水民</p>
            <p class="ui">11号</p>
            <div class="mxc">
                <img src="../img/task7.7.png"  alt="">
            </div>
        </div>
        <div class="cox">
            <p class="iu">水民</p>
            <p class="ui">12号</p>
            <div class="mxc">
                <img src="../img/task7.7.png"  alt="">
            </div>
        </div>
      </div>
     </div>
    <footer class="vc">
        <a href="../html/task7.3html.html" >
        <button>投死</button>
        </a>
    </footer>
</div>
</body>
</html>
*{
    margin: 0;
    padding: 0;
}
body{
    background: #29bde0;
}
.head{
    width: 100%;
    height: 14.59vw;
    background: #29bde0;
}
.catalogue{
    width: 6.093vw;
    height: 5.25vw;
    margin-top: 4.78vw;
    margin-left: 3.59vw;
}
.wrap{
    background: #29bde0;
}
.vote{
    position: absolute;
    margin-left: 38vw;
    font-size: 4vw;
    color: #ffffff;
    margin-top: 5vw;
}
.wrong{
    width: 3.78vw;
    margin-left: 34.31vw;
    margin-top: 6vw;
    margin-right: 4vw;
    float: right;
}
.make{
    height: 12.65vw;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.12rem;
    background: #b9e9f5;
}
.make audio{
    width: 5vw;
    height: 2vw;
    margin-right: 2.65vw;
    opacity: 0;
}
.make img{
    position: absolute;
    width: 8.125vw;
    margin-left: 88vw;
}
.make span{
    margin-left: 7.5vw;
    font-size: 3vw;
    padding-top:0.8vw;
}
.makk{
    width: 0;
    height: 0;
    margin-left: 11.25vw;
    border-width: 2vw;
    border-style: solid;
    border-color: #b9e9f5 transparent transparent transparent;
}
.cilck{
    color: #ffffff;
    font-size: 3vw;
    margin-left: 11.40vw;
}
.olk{
  margin-left: 2vw;
    margin-bottom: 16.5vw;
}
.center{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    list-style: none;
    padding: 0;
}
.cox{
    height: 25vw;
    width: 25vw;
    margin-right: 3vw;
    margin-bottom: 8vw;
    font-size: .17rem;
    text-align: center;
    border: 1vw solid white;
}
.iu{
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 70%;
    margin: 0;
    color: #565656;
    background-color: #f5c97b;
    font-size: 3vw;

}
.ui{
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 30%;
    margin: 0;
    background-color: #83b09a;
    font-size: 3vw;
}
.mxc img{
    margin-top: 2vw;
    display: none;
    width: 24vw;
    margin-left: -0.5vw;
}
.cox:hover img{
    display: block;
}
.vc{
    position: fixed;
    bottom: 0;
    padding: 1vw;
    width: 100%;
    height: 17vw;
    text-align: center;
    color: #fff;
    background-color: #29bde0;
}
.vc button{
    border: none;
    width: 80%;
    height: 9vw;
    background-color: #fbb435;
    margin-top: 5vw;
    font-size: 6vw;
    color: #ffffff;
}

该问题已被官方收录

关于使用用hover效果完全覆盖原有的div的方法

1

2

hover

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

.hoverbox{                                      

    opacity: 0;                                                                              
}
.hoverbox:hover{                         
    opacity: 1;
}

该问题已被官方收录

文字居中的问题，假如太少了不知道怎么操作？

7

2

居中

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

.good {
    margin: 2rem;
    font-size: 2rem;
    color: #ffc865;
    text-align: center;
}

该问题已被官方收录

html,body{height:100%}为什么还要设html的高度？

1

2

自适应

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>
    <style>
    html,body{height:100%}
    .parentElement{
        position:relative;
        background-color:aqua;
        width:200px;
        height:50%; 
    }

 .childElement{
     position:absolute;
     top:50%;
     transform:translateY(-50%);
     background-color:blueviolet;
        width:50%; 
        height: 25%;
        margin-left:25%;
 }
    </style>

</head>
<body>
    <div class="parentElement">
    <div class="childElement"></div>
    </div>
    
</body>
</html>

该问题已被官方收录

用flex如何实现响应式布局

2

2

响应式 flex

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

<p class="blogroll-p">友情链接</p>
            <div  class="blogroll-link">
                <ul class="link">
                    <li>手机软件</li>
                    <li>手机软件</li>
                    <li>手机软件</li>
                    <li>手机软件</li>
                    <li>手机软件</li>
                    <li>手机软件</li>
                    <li>手机软件</li>
                    <li>手机软件</li>
                    <li>手机软件</li>
                    <li>手机软件</li>
                </ul>
            </div>
            <div  class="blogroll-link">
                <ul class="link">
                    <li>手机软件</li>
                    <li>手机软件</li>
                    <li>手机软件</li>
                    <li>手机软件</li>
                    <li>手机软件</li>
                    <li>手机软件</li>
                    <li>手机软件</li>
                    <li>手机软件</li>
                    <li>手机软件</li>
                    <li>手机软件</li>
                </ul>
            </div>




.link{
    display: flex;
    justify-content: space-around;
    align-items: center;
}
.blogroll-p{
    line-height: 25px;
    text-align: center;
    font-size: 16px;
    color: #333333;
}
ul{
    text-align:left;
    padding-left: 20px;
    color:#999999;
}
li{
    flex: 1;
    justify-items: start;
}

该问题已被官方收录

select和option文字无法居中

2

2

居中表单元素

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

.slect-box1 {
  margin-bottom: 0;
  border: 1px solid #e8e8e8;
  border-top-left-radius: 5px;
  border-top-right-radius: 5px;
  padding: 10px 0 10px 40px;
  background: #f3f3f3 url(../.././favicon.ico/task10/box.png) no-repeat 10px
    12px;
  color: #1d7ad9;
text-align:center;
}

该问题已被官方收录

gulp4打包出现问题，

0

2

打包工具

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

<!DOCTYPE html>
<html>

<head>
    <link rel="stylesheet" href="css/combined-98d825ae5e.css">
   
    <script src="scripts/combined-ddab469f1a.js"></script>

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