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

怎么使导航悬停2个字变成4个字的同时下边框出现在底部

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

<!DOCTYPE html>
<html>

<head>
    <title>Bootstrap 实例</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/4.1.0/css/bootstrap.min.css">
    <script src="https://cdn.staticfile.org/jquery/3.2.1/jquery.min.js"></script>
    <script src="https://cdn.staticfile.org/popper.js/1.12.5/umd/popper.min.js"></script>
    <script src="https://cdn.staticfile.org/twitter-bootstrap/4.1.0/js/bootstrap.min.js"></script>
    <link rel="stylesheet" type="text/css" href="task8-2.css">
</head>

<body>
    <header class=" container none">
        <div class="d-flex justify-content-between align-items-center padding-lf-1rem">
            <span class="color-main font-size-14">
                客服热线：010-594-78634
            </span>
            <div>
                <i class="samll-icon nav-icon-1"></i>
                <i class="samll-icon nav-icon-2"></i>
                <i class="samll-icon nav-icon-3"></i>
            </div>
        </div>
    </header>
    <nav class="bg-main" >
        <div class="container">
            <div class="navbar navbar-expand-lg nav-height navbar-dark" >
                <a class="navbar-brand" href="#"><img src="img/home-logo.png" class="nav-logo"></a>
                <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNav"
                    aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
                    <span class="navbar-toggler-icon"></span>
                </button>
                <div class="collapse navbar-collapse" id="navbarNav">
                    <ul class="navbar-nav ml-auto">
                        <li class="nav-item active" style="display: flex;align-items: center;">
                            <p class="wwwww"></p>
                            <a class="nav-link font-size-18 nav-link-width" href="#">首页机缘</a>
                            
                        </li>
                        <li class="nav-item ">
                            <a class="nav-link font-size-18 nav-link-width" href="#">职业咨询</a>
                        </li>
                        <li class="nav-item ">
                            <a class="nav-link font-size-18 nav-link-width" href="#">合作企业</a>
                        </li>
                        <li class="nav-item ">
                            <a class="nav-link font-size-18 nav-link-width" href="#">关于修真</a>
                        </li>
                    </ul>
                </div>
            </div>
        </div>
    </nav>
</body>

</html>

.nav-link-width {
  width: 37px;
  height: 21px;
  line-height: 21px;
  overflow: hidden;
  padding: 0 !important;
  text-overflow: ellipsis;
  display: inline-block;
  margin-left: 2rem !important;
}
.nav-height {
  height: 100px;
}
.nav-item:hover .nav-link-width {
  width: 75px;
  margin-left: 2rem !important;

  border-bottom: 2px solid #fff;
}

为什么表格给予宽度10%会有100%的效果

0

1

属性属性

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

height: 40px;
    width:10%;
   padding-left: 18px;

父元素使用伪类hover时出现了子元素出现同样效果的问题

0

1

hover

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

           <div class="col-xs-12  col-sm-12 col-md-5 main4-box">
                <div class="main4-icobox">
                    <div class="main4-ico1 main4-clearhover"></div>
                </div>
            </div>
.main4-box :hover {
    box-shadow: 0 0 1px #9E9E9E;
}

轮播图能否不使用绝对定位

0

1

轮播

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

.frame{
    box-sizing: border-box;
    position: fixed;
    overflow:hidden; 
    padding-bottom: 30%;
    min-width: 100%;
    .photos {  
        position: absolute;
        width: 100%;
        overflow: hidden;
        .roll { 
            float: left;
            width: 100%;
        }
        .boil {
            background: url(./images/Image.png) no-repeat;
            background-size:100% 100%;
        }
        .boil-one {
            animation: myfirst 10s ease  infinite normal;
        }
        .boil-tow {
            animation: myfirst 10s ease  infinite normal;
        }
        .boil-tir {
            animation: myfirst 10s ease  infinite normal;
        }
        @keyframes myfirst {
            30%,50% {margin-left: -100%;}
            55%,75% {margin-left: -200%;}
            80%,100% {margin-left: -300%;}
        }
    }    
}

怎么引用公共less文件，

1

Less

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

@fullwidth:100%;
@fullheight:100%;
@bg-content:#fafafa;
@base:#29b078;
@font-size:14px;
@color:#bfbfbf;
@body:{margin:0;padding:0}
@p:{margin:0;padding:0}

怎样让轮播图下面的小圆点，当点击的时候切换到另一张图片时背景颜色能变成白色？

0

1

轮播表单元素

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

css：
/*轮播图*/
.carousel{
  position: relative;
  width: 100%;
  overflow: hidden;
}
.carousel-open:checked + .carousel-item {
  position: relative;
  opacity: 1;
}
.carousel-item {
  position: absolute;
  opacity: 0;
  transition: opacity 0.6s ease-out;
}
.carousel-control {
  background: rgba(0, 0, 0, 0.28);
  border-radius: 50%;
  color: #fff;
  cursor: pointer;
  display: none;
  font-size: 40px;
  height: 40px;
  line-height: 35px;
  position: absolute;
  top: 50%;
  cursor: pointer;
  transform: translate(0, -50%);
  text-align: center;
  width: 40px;
  z-index: 10;
}
.carousel-control.prev {
  left: 2%;
}
.carousel-control.next {
  right: 2%;
}
#carousel-1:checked ~ .control-1,
#carousel-2:checked ~ .control-2,
#carousel-3:checked ~ .control-3,
#carousel-4:checked ~ .control-4,
#carousel-5:checked ~ .control-5{display: block}
.carousel-item img {
  display: block;
  height: auto;
  max-width: 100%;}
.instructions{
  position: absolute;
  margin:0 auto;
  bottom: 10px;
  left: 0;
  right: 0;
  width: 90px;
  li{display: inline-block}
}
.bullet{display: inline-block;
  width: 10px;
  height: 10px;
  margin: 1px;
  cursor: pointer;
  background-color: rgba(0,0,0,0);
  border: 1px solid #fff;
  border-radius: 10px;}

html：   <div class="carousel">
        <input class="carousel-open" type="radio" id="carousel-1" name="carousel" aria-hidden="true" hidden="" checked="checked">
        <div class="carousel-item">
            <img src="../image/2.png">
        </div>
        <input class="carousel-open" type="radio" id="carousel-2" name="carousel" aria-hidden="true" hidden="">
        <div class="carousel-item">
            <img src="../image/3.png">
        </div>
        <input class="carousel-open" type="radio" id="carousel-3" name="carousel" aria-hidden="true" hidden="">
        <div class="carousel-item">
            <img src="../image/4.png">
        </div>
        <input class="carousel-open" type="radio" id="carousel-4" name="carousel" aria-hidden="true" hidden="">
        <div class="carousel-item">
            <img src="../image/5.jpg">
        </div>
        <input class="carousel-open" type="radio" id="carousel-5" name="carousel" aria-hidden="true" hidden="">
        <div class="carousel-item">
            <img src="../image/6.jpg">
        </div>
        <label for="carousel-5" class="carousel-control prev control-1">‹</label>
        <label for="carousel-2" class="carousel-control next control-1">›</label>
        <label for="carousel-1" class="carousel-control prev control-2">‹</label>
        <label for="carousel-3" class="carousel-control next control-2">›</label>
        <label for="carousel-2" class="carousel-control prev control-3">‹</label>
        <label for="carousel-4" class="carousel-control next control-3">›</label>
        <label for="carousel-3" class="carousel-control prev control-4">‹</label>
        <label for="carousel-5" class="carousel-control next control-4">›</label>
        <label for="carousel-4" class="carousel-control prev control-5">‹</label>
        <label for="carousel-1" class="carousel-control next control-5">›</label>
        <ol class="instructions">
            <li>
                <label for="carousel-1" class="bullet"></label>
            </li>
            <li>
                <label for="carousel-2" class="bullet"></label>
            </li>
            <li>
                <label for="carousel-3" class="bullet"></label>
            </li>
            <li>
                <label for="carousel-4" class="bullet"></label>
            </li>
            <li>
                <label for="carousel-5" class="bullet"></label>
            </li>
        </ol>
    </div>

横向的元素在纵向排列的时候，怎么保证居中

0

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

<div class="container">
    <div class="row">
        <div class="col-xs-12 col-sm-3 col-han">
            <div>
                <img src="media/rocket.png">
            </div>
            <h4>高效</h4>
            <p class="col-p">将五到七年的成长时间，缩短到一年到三年。</p>
        </div>
        <div class="col-xs-12 col-sm-3 col-han">
            <div>
                <img src="media/archive.png">
            </div>
            <h4>规范</h4>
            <p class="col-p">标准的实战教程，不会走弯路。</p>
        </div>
        <div class="col-xs-12 col-sm-3 col-han">
            <div>
                <img src="media/Shape-253.png">
            </div>
            <h4>人脉</h4>
            <p class="col-p">同班好友，同院学长，技术大师，入学就混入职脉圈，为以后铺平道路。</p>
        </div>

不能完美实现正方形

2

1

九宫格

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

body{
	height: 100%;
	margin: 0;
	display: block;
	text-align: center;
}
html{
	
	height: 100%;
}
.hezi1{
	width: 30%;
	height: 30%;
	margin: 1%;
	border-radius: 15%;
	background-color: yellow;
	float: left;
}

怎么改变botstrap的自带样式

0

1

bottstrap

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

.logo img >.navbar-brand {
    position: relative;
    left: -73vh;
    width: 90px;
    height: 40px;
}

css任务八第一个页面底部的链接

0

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

  <div class="container-fluid"style="padding: 0 10vw 0 10vw">
        <div class="row">
            <div class="col-xl main-five">
                <span></span>
                <a href="">手机软件</a>
            </div>
            <div class="col-xl main-five">
                <span></span>
                <a href="">教师招聘</a>
            </div>
            <div class="col-xl main-five">
                <span></span>
                <a href="">找工作</a>
            </div>
            <div class="col-xl main-five">
                <span></span>
                <a href="">教师招聘</a>
            </div>
            <div class="col-xl main-five">
                <span></span>
                <a href="">找工作</a>
            </div>
            <div class="col-xl main-five">
                <span></span>
                <a href="">教师招聘</a>
            </div>
            <div class="col-xl main-five">
                <span></span>
                <a href="">找工作</a>
            </div>
            <div class="col-xl main-five">
                <span></span>
                <a href="">教师招聘</a>
            </div>
            <div class="col-xl main-five">
                <span></span>
                <a href="">找工作</a>
            </div>
            <div class="col-xl main-five">
                <span></span>
                <a href="">教师招聘</a>
            </div>
        </div>
    </div>