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如何清除下拉框的滚动条，还能滑动，使其达到更美观。

0

1

通用通用

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

filterBox {
    margin-top: 4.4rem;
    display: flex;
    color: #999;
    border-bottom: 1px solid #e1e5e7;
}

.one-filter,
.two-filter,
.three-filter {
    width: 33.3%;
    height: 4rem;
    line-height: 4rem;
    font-size: 1.2rem;
    text-align: center;
    border-right: 1px solid #e1e5e7;
    position: relative;
    cursor: pointer;
}

.city,
.Roomboard,
.patient-situation {
    overflow: auto;
    min-width: 100%;
    height: 20rem;
    display: none;
    position: absolute;
    background-color: #fbf7f7;
    overflow: auto;
    box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
}

.one-filter:hover .city,
.two-filter:hover .Roomboard,
.three-filter:hover .patient-situation {
    display: block;
}

如何用CSS实现响应式导航栏

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1

轮播

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

body {
    margin: 0;
    width: 100%;
    height: 100%;
    font-family: Arial, "Times New Roman", "Microsoft YaHei", SimSun, SimHei;
}


main {
    background-color: #fafafa;
}

   /* height: 50px;   神坑定高！下拉出不来   */
header {
}

.head-top {
    display: flex;
    justify-content: space-between;
}

/*客服热线*/
.tel {
    margin-top: 0.5%;
    margin-left: 2%;
    margin-top: 3px;
    font-size: 12px;
    color: #29B078;
}

/*微信微博qq图标*/
.head-img {
    margin-right: 2%;
}


.head-img img {
    width: 20px;
    margin-left: 8px;
}


/*加跳转链接*/
.head-text a {
    text-decoration: none;
    color: #ffffff;
}


.carousel-caption .text-4 a {
    text-decoration: none;
    color: #ffffff;
}


.navbar-nav .nav-item .nav-link {
    padding: 15px;
    border: 1px solid #26a26f;
}


.navbar-nav .nav-item .nav-link:hover {
    border-bottom: 1px solid white;
}



/*下面是轮播图的Boot4组件*/

/*这个类，组件里自带了absolute，我这里修改的是文字上移的位置*/
.carousel-caption {
    bottom: 32% !important;
}

/* Make the image fully responsive 让图片全屏展示*/
.carousel-inner img {
    width: 100%;
    height: 100%;
}

.carousel-inner .text {
    text-align: center;
    font-weight: bold;
    font-size: 2.5vw;
    color: #ffffff;
}

.carousel-inner .text-2 {
    text-align: center;
    font-weight: bold;
    font-size: 3vw;
    letter-spacing: 2px;
    color: #ffffff;
}

.carousel-inner .text-2 span {
    font-size: 4.5vw;
    letter-spacing: 2px;
    color: #ffffff;
}


.carousel-inner .text-3 {
    text-align: center;
    font-weight: bold;
    font-size: 6.5vw;
    font-family: MicrosoftJhengHei;
    color: #ffffff;
}


.carousel-inner .text-4 {
    text-align: center;
    font-size: 5.5vw;
    font-family: MicrosoftJhengHei;
    letter-spacing: 2px;
    color: #ffffff;
}



.container.intro {
    margin-bottom: 120px;
}


h3 {
    padding-bottom: 35px;
    text-align: center;
}

.link-h {
    padding-bottom: 5px;
    text-align: center;
}


main .row {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: justify;
}


.container.intro .col-lg-3.col-md-6 {
    display: flex;
    flex-direction: column;
    justify-items: center;
    padding: 29px;
}


.container.intro .col-lg-3.col-md-6.adjust {
    display: flex;
    flex-direction: column;
    justify-items: center;
    padding-left: 80px;
    border-left: 1px solid rgba(128, 128, 128, 0.15);
}


.container.intro .col-lg-3.col-md-6:hover {
    box-shadow: 1px 1px 2px 1px rgba(128, 128, 128, 0.15);
}


.container.intro .col-lg-3.col-md-6.adjust:hover {
    box-shadow: 1px 1px 2px 1px rgba(128, 128, 128, 0.15);
}


.container.intro .pic {
    text-align: center;
}


.container.intro .pic-2 {
    /* margin-top: 25px; */
    text-align: center;
}


.container.intro .pic-3 {
    margin-top: 15px;
    text-align: center;
}


.container.intro .count-people-adjust {
    margin-top: 40px;
}


.container.intro .pic img {
    width: 40px;
}

.container.intro .pic-2 img {
    width: 40px;
}


.container.intro .pic-3 img {
    width: 40px;
}

webstrom创建sass时出现问题

0

1

sass

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 图片

class="cursor-pointer"> 文本

bootstrap3.0和4.0栅格系统布局有什么区别

0

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

<header>
        <div class="container">
            <div class="row align-items-center headerHeight">
                <div class="col-md-6 ">
                    <div class="customService">客服热线：010-594-78634</div>
                </div>
                <div class="col-md-6 text-right icons">
                    <div class="wechat"></div>
                    <div class="qq"></div>
                    <div class="sina"></div>
                </div>
            </div>
        </div>
        <div class="bgc">
            <div class="container bgc">
                <div class="row align-items-center bgc">
                    <div class="col-4 col-sm-4">
                        <div class="tree">技能树</div>
                        <div class="url">www.jnshu.com</div>
                    </div>
        
                    <div class="col-8 col-sm-8">
                        <ul class="nav navRight text-center justify-content-end">
                            <a href="">
                                <li class="nav-item">
                                    首页
                                    <div class="white">
                                </li>
                            </a>
                            <a href="">
                                <li class="nav-item">
                                    职业
                                    <div class="white">
                                </li>
                            </a>
                            <a href="">
                                <li class="nav-item">
                                    推荐
                                    <div class="white">
                                </li>
                            </a>
                            <a href="">
                                <li class="nav-item">
                                    关于
                                    <div class="white">
                                </li>
                            </a>

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


            </div>
        </div>

    </header>

怎么让元素具有点击后出现hover的效果

2

1

属性

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

.lump a:hover {
    text-decoration: none;
    color: #ff6d1b;
}
.lump a:hover .circle-left {
    background: #ff6d1b;
}

在flex布局中，text-overflow：ellipsis不生效的问题

1

页面显示 flex

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

css代码
.txt2{
    width: 50%;
    overflow: hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
    margin-bottom: 1.3rem;
    margin-top: 1.3rem;
    font-size: 1.4rem;
}
.listtxt{
    position: relative;
    display: flex;
    padding-left: 1.5rem;
    flex-flow: column nowrap;
    justify-content: space-around;
    align-items: end;
    width: 100%;
    border-width: 0 0 1px 0;
    border-style: solid;
    border-color: #e1e5e7
}
html代码
<div class="listtxt">
<div class="txt2">
        <p>2015-7-5至2015-7-122015-7-5至2015-7-122015-7-5至2015-7-122015-7-5至2015-7-122015-7-5至2015-7-122015-7-5至2015-7-12</p>
    </div>
</div>

任务15的代码规范有哪几种，哪些会好用通俗一点

0

1

通用

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

/* 重置 */
div,p,ul,ol,li{margin:0;padding:0;}
/* 默认 */
strong,em{font-style:normal;font-weight:bold;}
/* 统一调用背景图 */
.m-logo a,.m-nav a,.m-nav em{background:url(images/sprite.png) no-repeat 9999px 9999px;}
/* 统一清除浮动 */
.g-bdc:after,.m-dimg ul:after,.u-tab:after{display:block;visibility:hidden;clear:both;height:0;overflow:hidden;content:'.';}
.g-bdc,.m-dimg ul,.u-tab{zoom:1;}
/* 布局 */
.g-sd{float:left;width:300px;}
/* 模块 */
.m-logo{width:200px;height:50px;}
/* 元件 */
.u-btn{height:20px;border:1px solid #333;}
/* 功能 */
.f-tac{text-align:center;}
/* 皮肤 */
.s-fc,a.s-fc:hover{color:#fff;}

如何安装gulp4.0.0

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1

打包工具

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

如上

移动端与PC端适配

0

1

媒体查询

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

media only screen and (min-width: 401px){
    html {
        font-size: 25px !important;
    }
}
@media only screen and (min-width: 428px){
    html {
        font-size: 26.75px !important;
    }
}
@media only screen and (min-width: 481px){
    html {
        font-size: 30px !important;
    }
}
@media only screen and (min-width: 569px){
    html {
        font-size: 35px !important;
    }
}
@media only screen and (min-width: 641px){
    html {
        font-size: 40px !important;
    }
}

@media only screen and (min-width: 768px){
    html {
        font-size: 48px !important;
    }
}

@media only screen and (min-width: 1024px){
    html {
        font-size: 64px !important;
    }
}
@media only screen and (min-width: 1440px){
    html {
        font-size: 90px !important;
    }
}

底部边框要设置为透明色能看得到主体的内容，而且不影响子元素布局，如何设置。

0

1

通用

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

 <footer class="footer-box">

        <a href="task7.html" class="one-more-game">
            <p>再来一局</p>
        </a>
        <a></a>
        <a href="task7.html" class="share-it">
            <p>上传分享</p>
        </a>

    </footer>