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

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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背景图片，在不同的分辨率下，显示不全。

2

3

布局 css概念

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

.background {
    background-image: url(images/background.jpg);
    background-size: cover;
    position: relative;
    height: 180px;
    color: #ffffff;
}

该问题已被官方收录

下拉框有效区域问题

4

3

表单元素

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

<div class="col-lg-4 col-md-4 col-sm-4 col-xs-4">
                <ul>
                    <li class="dropdown dropdown-menu-left text-center">
                        <a href="#" class="dropdown-toggle  text-center" data-toggle="dropdown">
                            所在地
                            <b class="caret btn-large triangle"></b>
                        </a>
                        <ul class="dropdown-menu">
                            <li><a href="#">北京</a></li>
                            <li><a href="#">上海</a></li>
                            <li><a href="#">广州</a></li>
                            <li><a href="#">福州</a></li>
                            <li><a href="#">厦门</a></li>
                        </ul>
                    </li>
                </ul>
            </div>

该问题已被官方收录

如何实现在响应式过后的文件对齐

2

2

布局响应式

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

css
@gerrn:#29b078;
@fff:#fff;
@color:#fafafa;

.dfjsb{
  display:flex;
  justify-content:space-between;
  align-items:center;

}

a{
  text-decoration:none;
}

.yui{
  .dfjsb;
  padding:0 2rem;
}

.rty{
  .dfjsb
}

.dfjsa{
  display:flex;
  justify-content:space-around;
  align-items:center;
}

.dfffr{
  display:flex;
  flex-flow:column;
  align-items:center;
  padding-left:1.5em;
  justify-content:center;
}

.dfrr{
  display:flex;
  flex-direction:row-reverse;
  color:@fff;
}

.tac{
  text-align:center;
}

html{
  font-size:62.5%;
  overflow-x: hidden;
}

body{
  margin:0;
  padding:0;
  background:#fafafa;
}

.hdtp{
  .dfjsb;
  padding:0 2rem;
  .hdct{
    color:@gerrn;
  }
  .hdbm{
    .dfjsb;
    padding-right:2rem;
    width:15%;
  }
}

.hdmn{
  .dfrr;
  justify-content:space-between;
  padding:0 2rem;
  background:@gerrn;
  height:7.2rem;
  font-size:1.6vw;
  .hdmnq{
    display:flex;
    flex-flow:row-reverse;
    width:70%;
    padding-right:2rem;
  }
  .hdmnc{
    text-align:center;
    height:7rem;
    line-height:7rem;
    width:8%;
    &:hover{
      border-bottom:3px solid #fff;
    }
  }
}

@media screen and(max-width:1000px){
  .hdmn .hdmnc{
    width:25%;
  }
}

.mnftr{
  margin-top:1.3em;
}

.setting{
  height:3em;
  margin:0 4em 0 24px;
  font-size:1.6em;
  border-bottom:1px solid #ccc;
  a{
    color:green;
  }
}

.text{
  margin:0 64px 0 2em;
  height:2em;
  border-bottom:1px solid #ccc;
  a{
    color:#000;
    &:hover{
      background:green;
      color:#fff;
    }
  }
}


strong{
  display:block;
  height:3em;
  border-bottom:1px solid #ccc;
  margin:0 64px 0 24px;
  font-size:16px;
  text-align:center;
}

.tab{
  width:330px;
  margin-top:1em;
  border:1px solid #ccc;
  img{
    width:90px;
    height:90px;
    margin:1em;
  }
}

.tae{
  width:330px;
  border:1px solid #ccc;
  border-top:0;
  .w200{
    width:180px;
    height:2em;
    border-right:1px solid #ccc;
  }
  b{
    color:red;
  }
  img{
    width:10px;
    height:10px;
  }
}

.boa{
  border:1px solid #ccc;
  .w145{
    text-align:center;
    width:130px;
    border-right:1px solid #ccc;
  }
  .w199{
    width:187px;
    border-bottom:1px solid #ccc;
  }
}

.dsf{
  display:flex;
  justify-content:space-between;
  margin:0 2em;
}



.ttt{
  font-size:12px;
  width:330px;
  border:1px solid #ccc;
}

.footer-top{
  background:@gerrn;
  color:@fff;
}

.footer-center{
  padding-right:.5em;
  border-right:1px solid @fff;
}

.footer-bottom{
  padding-bottom:.3em;
  height:1.3rem;
  &:hover{
    border-bottom:2px solid @fff;;
  }
}

@media screen and (max-width:1000px){
  .yui{
    display:flex;
    flex-flow:column;
  }
}
@media screen and (max-width:1000px){
  .dsf{
    display:flex;
    flex-flow:column;
    width:100%;
  }
  .text{
    margin:0;
  }
  strong{
    margin:0;
    display: block;
    height: 3em;
    border-bottom: 1px solid #ccc;
    font-size: 16px;
    text-align: center;
  }

  .hdmn{
    padding:0;
  }
.setting{
  margin:0;
}
  .center{
    margin:0 auto;
  }

  .tab{
    width:90%;
  }

  .tae{
    width:90%;
  }

  .boa{
    width:90%;
  }

  .ttt{
    width:90%;
  }
}
.summary{
  display: flex;
  flex-flow: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  position: absolute;
  top: 0;
  left: 0;
  width: 280px;
  height: 310px;
  transition: ALL 3s ease-in-out;
}
.re{
   display:block;
  position:relative;
  top:0;
 }
.summary:hover{
  display:block;
  opacity: .8;
  background:black;
  color: white;
  transform: rotate(360deg);
  padding: 0 2rem;
  margin: 1rem 2rem 0 2px;
}

@media screen and (max-width:1000px){
  .summary{
    width:83%;
  }
}
@media screen and (max-width:600px){
  .summary{
    width:73%;
  }
}

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

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

我在做任务五的时候，用了背景图片的填充，可是发现了无法填充满

1

2

布局

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="task5.css">
</head>
<body>
    <header>
        <a class="return"></a>
        <a class="arrow"></a>
        <span>个人主页</span>
    </header>
    <div class="box2">
        <div class="doctor"></div>
        <div class="headportrait"></div>
        <span class="name">高素雅</span>
        <span class="age">51岁</span>
        <span class="site">北京.通州.果园</span>
    </div>
    <div class="box3">
        <div class="skill">
            <span>专业技能</span>
        </div>
        <div class="require">
            <span class="require1">住家</span>
            <span class="require2">不含餐</span>
        </div>
        <div class="experience">
            <span class="experience1">工作年限</span>
            <span class="experience2">0~3年</span>
        </div>
        <div class="time">
            <span class="time1">工作时间</span>
            <span class="time2">全天</span>
        </div>
        <div class="price">
            <span class="price1">服务价格</span>
            <span class="price2">25元/小时</span>
        </div>
        <div class="introduce">
            <span class="introduce1">自我介绍</span>
            <span class="introduce2">可以洗衣、做饭、照顾老人。在护
                工方面有5年的经验，经验丰富。</span>
        </div>
        <div class="connection">
            <a class="leave word">留言</a>
            <a class="phone">电话联系</a>
        </div>
    </div>
</body>
</html>
html{
    font-size: 62.5%;
}
body{
   margin: 0; 
}
header{
    height:4.4rem;
    background-color: #5FC0CD;
    text-align: center;
}
/*.return{*/
    /*width: 20px;*/
    /*height: 20px;*/
    /*border-top: 1px solid white;*/
    /*border-right: 1px solid white;*/
    /*transform:rotate(45deg);*/
/*}*/
.arrow{
    width: 1.5rem;
    height: 1.5rem;
    border-top: 3px solid white;
    border-left: 3px solid white;
    transform:rotate(-45deg);
    display: inline-block;
    margin-left: 3.5rem;
    margin-top: 1.2rem;
    float: left;
}
header span{
    font-size: 3rem;
    color: white;
}
.box2{
 background: url(./doctor.png) no-repeat;
 height: 32.6rem;
 background-size: 100%
}

该问题已被官方收录

底下的自我介绍那一行，没有办法做到和设计图一样，上下两行，不知道是哪里出了问题

2

2

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="task5.css">
</head>

<body>
    <header class="return">
        <a class="arrow"></a>
        <span class="introductio">个人主页</span>
    </header>
    <div class="bg">
        <!-- 背景图片 -->
        <div class="portrait"></div>
        <div>
            <div>
                <span class="name">高素雅</span>
                <span class="age">51岁</span>
            </div>
            <div class="box1">
                <div class="shape"></div>
                <span class="address">北京.通州.果园</span>
            </div>
        </div>
    </div>
    <div class="box3">
        <div class="skill">
            <p>专业技能</p>
        </div>
       <div class="require">
            <div class="box4">
                <div class="pentagram1"></div>
                <span class="require1">住家</span>
            </div>
            <div class="box5">
                <div class="pentagram2"></div>
                <span class="require2">不含餐</span>
            </div>
        </div>
        <div class="menu">
            <span class="submenu">工作年限</span>
            <span class="submenu1">0~3年</span>
        </div>
        <div class="menu">
            <span class="submenu">工作时间</span>
            <span class="submenu1">全天</span>
        </div>
        <div class="menu">
            <span class="submenu">服务价格</span>
            <span class="submenu2">25元/小时</span>
        </div>
        <div class="introduction">
            <span class="submenu">自我介绍</span>
            <div>
                <span class="introduction2">可以洗衣、做饭、照顾老人。在护
                    工方面有5年的经验，经验丰富。</span>
            </div>
        </div>
    </div>
    <footer>
        <button class="leaveword">留言</button>
        <button class="phone">联系方式</button>
    </footer>        
</body>

</html>
html{
    font-size: 62.5%
}
body{
    margin: 0;
    font-size: 1.6rem;
}
header{
    height:4.4rem;
    background-color: #5FC0CD;
    text-align: center;
    position: fixed;
    width: 100%;
    top: 0;
}
/*.return{*/
    /*width: 20px;*/
    /*height: 20px;*/
    /*border-top: 1px solid white;*/
    /*border-right: 1px solid white;*/
    /*transform:rotate(45deg);*/
/*}*/
.arrow{
    position: absolute;
    left: 0;
    width: 1.5rem;
    height: 1.5rem;
    border-top: 3px solid white;
    border-left: 3px solid white;
    transform:rotate(-45deg);
    display: inline-block;
    margin-left: 3.5rem;
    margin-top: 1.2rem;
    float: left;
}
.introductio{
    color: white;
    text-align: center;
    line-height: 4rem;
}
.bg{
    background: url(./doctor.png) no-repeat;
    height: 16.3rem;
    background-size: cover;
    display: flex;
    align-items: center;
    margin-top: 4rem;
}
.portrait{
    background: url(./head\ portrait.png) no-repeat;
    height: 8.45rem;
    width: 8.45rem;
    background-size: cover;
    margin-left: 1.5rem;
}
.name{
    color: white;
    margin-left: 2rem;
}
.age{
    color: white;
    margin-left: 1.5rem;
}
.shape{
    background: url(./Shape\ 4.png) no-repeat;
    width: .9rem;
    height: 1.15rem; 
    align-items: center;
    background-size: cover;
    display:inline-block;
    vertical-align: middle;
    margin-left: 2.2rem;
}
.address{
    color: white;
    font-size: .24rem;
}
.box3{
    height: 41.65rem;
}
.skill{
    height: 5rem;
    border: 1px solid  #E1E5E7;
}
p{
    border-left:4px solid #5FC0CD;
    display: inline-block;
    line-height: 2rem;
    margin-left: 2rem;
    padding-left: 1rem;
}
.require{
    border-bottom: .5px solid #E1E5E7;
    margin-left: 1.65rem;
    line-height: 5rem;
    height: 5rem;
    font-size: 1.8rem;
}
.box4{
    display: inline-block;
    padding-left: 1rem;
    border-right:1px solid #E1E5E7;
    line-height: 2rem;
    padding-right: 1rem;
}
.pentagram1{
    background: url(./pentagram1.png) no-repeat;
    display: inline-block;
    width: 1.1rem;
    height: 1.2rem;
    background-size: contain;
    margin-left: 3rem;
}
.box5{
    display: inline-block;
}
.pentagram2{
    display: inline-block;
    background: url(./pentagram2.png) no-repeat;
    width: 1.1rem;
    height: 1.2rem;
    background-size: contain;
}
.menu{
    border-bottom:1px solid #EFF0F4;
    height: 5rem;
    line-height: 5rem;
    margin-left: 1.65rem;
}
.submenu{
    margin-left: 3.4rem;
    border-right: 1px solid #E1E5E7;
    padding-right: 1rem;
}
.submenu1{
    margin-left: 1.35rem;
}
.submenu2{
    margin-left: 1.35rem;
    color:  #E26163;
}
.introduction{
    border-bottom:1px solid #EFF0F4;
    height: 5rem;
    display: flex;
    margin-left: 1.65rem;
    align-items: center;
}
.introduction2{
    font-size: 1.4rem;
    width: 40rem;
    padding-left: 2rem;
}
footer{
    display: flex;
    width: 100%;
    position: fixed;
    bottom: 0;
    background-color: white;
}
.leaveword{
    width: 40%;
    height: 4.4rem;
    background-color: white;
    border: 1px solid #5FC0CD;
    color: #5FC0CD;
    font-size: 100%;
    border-radius: 5px;
    margin: auto;
}
.phone{
    width: 40%;
    height: 4.4rem;
    background-color: #5FC0CD;
    border: 1px solid #5FC0CD;
    color: white;
    font-size: 100%;
    border-radius: 5px;
    margin: auto;
}

该问题已被官方收录

有没有更方便的轮播图实现方案？

1

2

轮播

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

九宫格只能竖着排列或横向排列

6

2

九宫格块级元素

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

.swag{
  padding-left:31%;
  padding-bottom: 31%;
  margin:1%;
  border-radius: 20%;
  background: orange;
}

去第页

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