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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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如何如何将我的头部文件固定并保证3个文字定位

3

1

绝对定位

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码


.text1 {
	line-height: 53px;
	display: inline;
	float: left;
	margin-left: 1rem;
}//css文本
.nav {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	background-color: rgb(90,192,206);
	width:100%;
	height: 60px;
}//头部固定
<div class="nav">
			<a href="#" class="text1">注册</a>
			<span class="login">登录</span>
			<a href="#" class="text2">关闭</a>
		</div>//HTML部分

该问题已被官方收录

怎样使边框颜色渐变

3

1

渐变

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

<div class="head-of-form">
    <div>
        <div class="nav-head">
            <span>所在地</span>
            <div class="icon"></div>
        </div>
        <div class="drop-down-content">广州</div>
        <div class="drop-down-content">深圳</div>
        <div class="drop-down-content">珠海</div>
    </div>
    <div>
        <div class="nav-head">
            <span>食宿</span>
            <div class="icon"></div>
        </div>
        <div class="drop-down-content">最便宜</div>
        <div class="drop-down-content">一般般</div>
        <div class="drop-down-content">最昂贵</div>
    </div>
    <div>
        <div class="nav-head">
            <span>病人情况</span>
            <div class="icon"></div>
        </div>
        <div class="drop-down-content">最帅</div>
        <div class="drop-down-content">最美</div>
        <div class="drop-down-content">最可爱</div>
    </div>
</div>

该问题已被官方收录

任务六里左边的文字进行缩放后发现无法出现省略号

1

1

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="task6.css">
</head>

<body>
    <header>
        <div class="box">
            <!-- 菜单盒子 -->
            <button class="menu" onclick="location.href='6.html'">找雇主</button>
            <button class="submenu">找护工</button>
            <button class="icon"></button>
            <!-- 导航盒子 -->
        </div>
        <div class="box1">
            <!-- 下拉框外部盒子 -->
            <div class="ddb">
                <!-- drop-down-box的缩写 -->
                <div class="box2">
                    <!-- 第一个下拉框外部盒子 -->
                    <span class="site">所在地</span>
                    <div class="dropdown-content">
                        <!-- 下拉框 -->
                        <p class="ddb1">1</p>
                        <p class="ddb1">2</p>
                        <p class="ddb1">3</p>
                    </div>
                    <span class="triangle"></span>
                    <!-- 倒三角形 -->
                </div>
            </div>
            <div class="ddb">
                <!-- drop-down-box的缩写 -->
                <div class="box3">
                    <!-- 第二个下拉框选项盒子 -->
                    <span class="rad">食宿</span>
                    <!-- room and board缩写 -->
                    <div class="dropdown-content">
                        <!-- 下拉框 -->
                        <p class="ddb1">1</p>
                        <p class="ddb1">2</p>
                        <p class="ddb1">3</p>
                    </div>
                    <span class="triangle1"></span>
                </div>
            </div>
            <div class="ddb">
                <!-- drop-down-box的缩写 -->
                <div class="box4">
                    <!-- 第二个下拉框选项盒子 -->
                    <span class="cdt">病人情况</span>
                    <!-- condition的缩写 -->
                    <div class="dropdown-content">
                        <!-- 下拉框 -->
                        <p class="ddb1">1</p>
                        <p class="ddb1">2</p>
                        <p class="ddb1">3</p>
                    </div>
                    <span class="triangle2"></span>
                    <!-- 倒三角形 -->
                </div>
            </div>
        </div>
    </header>
    <main>
        <div class="menu-bar">
            <!-- 菜单选项1 -->
            <div class="menu-bar1">
                <!-- 菜单选项内部盒子 -->
                <span class="icon1"></span>
                <!-- 日期雪碧图 -->
                <span class="Sd">服务日期</span>
                <!-- Service date的缩写 -->
            </div>
            <div class="menu-bar2">
                <!-- 菜单选项内部盒子2 -->
                <p>2015-7-5 至 2015-7-12</p>
                <div class="box5">
                    <!-- 时间箭头盒子 -->
                    <span class="price">25元/小时</span>
                    <span class="ra"></span>
                    <!-- right arrow右边箭头的缩写 -->
                </div>
            </div>
            <div class="tab">
                <!-- The address box的缩写 -->
                <span class="icon2"></span>
                <!-- 地址雪碧图 -->
                <span class="location">北京.通州.果园</span>
                <!-- 地址类名字 -->
            </div>
        </div>
        <div class="menu-bar">
            <!-- 菜单选项2 -->
            <div class="menu-bar1">
                <!-- 菜单选项内部盒子 -->
                <span class="icon1"></span>
                <!-- 日期雪碧图 -->
                <span class="Sd">服务日期</span>
                <!-- Service date的缩写 -->
            </div>
            <div class="menu-bar2">
                <!-- 菜单选项内部盒子2 -->
                <p>2015-7-5 至 2015-7-12</p>
                <div class="box5">
                    <!-- 时间箭头盒子 -->
                    <span class="price">35元/小时</span>
                    <span class="ra"></span>
                    <!-- right arrow右边箭头的缩写 -->
                </div>
            </div>
            <div class="tab">
                <!-- The address box的缩写 -->
                <span class="icon2"></span>
                <!-- 地址雪碧图 -->
                <span class="location">北京.通州.果园</span>
                <!-- 地址类名字 -->
            </div>
        </div>
        <div class="menu-bar">
            <!-- 菜单选项3 -->
            <div class="menu-bar1">
                <!-- 菜单选项内部盒子 -->
                <span class="icon1"></span>
                <!-- 日期雪碧图 -->
                <span class="Sd">服务日期</span>
                <!-- Service date的缩写 -->
            </div>
            <div class="menu-bar2">
                <!-- 菜单选项内部盒子2 -->
                <p>2015-7-5 至 2015-7-12</p>
                <div class="box5">
                    <!-- 时间箭头盒子 -->
                    <span class="price">45元/小时</span>
                    <span class="ra"></span>
                    <!-- right arrow右边箭头的缩写 -->
                </div>
            </div>
            <div class="tab">
                <!-- The address box的缩写 -->
                <span class="icon2"></span>
                <!-- 地址雪碧图 -->
                <span class="location">北京.通州.果园</span>
                <!-- 地址类名字 -->
            </div>
        </div>
        <div class="menu-bar">
            <!-- 菜单选项4 -->
            <div class="menu-bar1">
                <!-- 菜单选项内部盒子 -->
                <span class="icon1"></span>
                <!-- 日期雪碧图 -->
                <span class="Sd">服务日期</span>
                <!-- Service date的缩写 -->
            </div>
            <div class="menu-bar2">
                <!-- 菜单选项内部盒子2 -->
                <p>2015-7-5 至 2015-7-12</p>
                <div class="box5">
                    <!-- 时间箭头盒子 -->
                    <span class="price">45元/小时</span>
                    <span class="ra"></span>
                    <!-- right arrow右边箭头的缩写 -->
                </div>
            </div>
            <div class="tab">
                <!-- The address box的缩写 -->
                <span class="icon2"></span>
                <!-- 地址雪碧图 -->
                <span class="location">北京.通州.果园</span>
                <!-- 地址类名字 -->
            </div>
        </div>
        <div class="menu-bar5">
            <!-- 菜单选项5 -->
            <div class="menu-bar1">
                <!-- 菜单选项内部盒子 -->
                <span class="icon1"></span>
                <!-- 日期雪碧图 -->
                <span class="Sd">服务日期</span>
                <!-- Service date的缩写 -->
            </div>
            <div class="menu-bar2">
                <!-- 菜单选项内部盒子2 -->
                <p>2015-7-5 至 2015-7-12</p>
                <div class="box5">
                    <!-- 时间箭头盒子 -->
                    <span class="price">45元/小时</span>
                    <span class="ra"></span>
                    <!-- right arrow右边箭头的缩写 -->
                </div>
            </div>
            <div class="tab">
                <!-- The address box的缩写 -->
                <span class="icon2"></span>
                <!-- 地址雪碧图 -->
                <span class="location">北京.通州.果园</span>
                <!-- 地址类名字 -->
            </div>
        </div>
    </main>
    <footer>
        <div class="bottom-menu">
            <!-- 底部菜单栏 -->
            <span class="icon4"></span>
            <!-- 首页雪碧图 -->
            <button class="home-page">首页</button>
            <!-- 首页 -->
        </div>
        <div class="bottom-conten">
            <!-- 中心圆 -->
            <button class="icon5"></button>
            <!-- 中心的雪碧图 -->
        </div>
        <div class="right-option">
            <!-- 右边选项 -->
            <span class="icon6"></span>
            <!-- 右边的雪碧图 -->
            <button class="my">我的</button>
        </div>
    </footer>
</body>

</html>
html {
    font-size: 62.5%
}

body {
    font-size: 1.6rem;
    margin: 0;
}

header {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1;
}

.box {
    height: 4.4rem;
    background-color: #5FC0CD;
    display: flex;
    justify-content: center;
    align-items: center;
}

.menu {
    margin-right: -5px;
    font-size: 1.7rem;
    width: 7.2rem;
    height: 3.5rem;
    color: white;
    background-color: #55A8B3;
    border: 1px solid #55A8B3;
    border-top-left-radius: .5rem;
    border-bottom-left-radius: .5rem;
}

.submenu {
    font-size: 1.7rem;
    width: 7.2rem;
    height: 3.5rem;
    color: #5FC0CD;
    background-color: white;
    border: 1px solid white;
    border-radius: .5rem;
    z-index: 1;
}

.icon {
    background: url(./css_sprites\ \(1\).png) no-repeat;
    width: 2.1rem;
    height: 2.2rem;
    background-position: -10px -10px;
    zoom: 0.5;
    position: absolute;
    border: 0;
    top: 1.1rem;
    right: 1.5rem;
}

.box1 {
    display: flex;
    height: 4rem;
    border-bottom: 1px solid #E1E5E7;
    text-align: center;
    background: white;
}

.ddb {
    position: relative;
    display: flex;
    flex-grow: 1;
    width: 100px;
}

.box2 {
    height: 4rem;
    position: relative;
    justify-content: center;
    align-items: center;
    flex-grow: 1;
}

.site {
    color: #999999;
    font-size: 1.4rem;
    line-height: 4rem;
}

.triangle {
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid #AFBAC0;
    position: absolute;
    top: 1.8rem;
    right: 6.6px;
}

.ddb1 {
    margin: 0;
    padding: 0;
    font-size: 1.4rem;
    display: block;
}

.dropdown-content {
    display: none;
    text-align: center;
    background-color: #5FC0CD;
    min-width: 1.2rem;
    box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
    top: 3.65rem;

}

.ddb1:hover {
    background: #AFBAC0;
}

.ddb:hover .dropdown-content {
    display: block;
}

.box3 {
    height: 4rem;
    justify-content: center;
    align-items: center;
    position: relative;
    flex-grow: 1;
    text-align: center;
    border-left: 1px solid #E1E5E7;
    border-right: 1px solid #E1E5E7;
}

.rad {
    line-height: 4rem;
    color: #999999;
    font-size: 1.4rem;
    flex-grow: 1;
}

.triangle1 {
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid #AFBAC0;
    position: absolute;
    top: 1.8rem;
    right: 7.4px;
}

.box4 {
    height: 4rem;
    width: 100%;
    justify-content: center;
    align-items: center;
    position: relative;
    flex-flow: 1;
    border-left: 0;
    border-right: 0;

}

.cdt {
    color: #999999;
    font-size: 1.4rem;
    line-height: 4rem;
}

.triangle2 {
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid #AFBAC0;
    position: absolute;
    top: 1.8rem;
    right: 3.7px;
}

main {
    margin-top: 93px;
    margin-bottom: 69px;
}

.menu-bar {
    height: 9rem;
    border-bottom: 1px solid #E1E5E7;
    position: relative;
    line-height: 2.4rem;
}

.menu-bar1 {
    display: inline-block;
}

.icon1 {
    background: url(./css_sprites\ \(1\).png) no-repeat;
    background-position: -72px -74px;
    width: 2.2rem;
    height: 2.2rem;
    zoom: 0.5;
    position: absolute;
    top: 1.45rem;
    left: 1.5rem;
    display: inline-block;
}

.Sd {
    color: #5D5D5D;
    margin-left: 3.45rem;
    vertical-align: super;
    display: inline-block;
    margin-top: 1rem;
}
.menu-bar2{
   
}
p {
    margin: 0;
    padding: 0;
    margin-left: 3.4rem;
    font-size: 1.4rem;
    display: inline-block;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.box5 {
    display: inline-block;
    margin-right: 1.6rem;
}

.price {
    font-size: 1.5rem;
    color: #E63B0E;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    width: 100%;
    height: 100%;
}

.ra {
    display: inline-block;
    border-right: 3px solid;
    border-bottom: 3px solid;
    width: 10px;
    height: 10px;
    transform: rotate(-45deg);
    color: #5FC0CD;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.icon2 {
    background: url(./css_sprites\ \(1\).png) no-repeat;
    background-position: -138px -10px;
    width: .85rem;
    height: 1.15rem;
    display: inline-block;
    top: 6.25rem;
    margin-left: 1.6rem;
    zoom: 0.5;
}

.location {
    color: #999999;
}

.option {
    height: 3.45rem;
    position: relative;
}

.icon3 {
    background: url(./css_sprites\ \(1\).png) no-repeat;
    background-position: -72px -74px;
    width: 2.2rem;
    height: 2.2rem;
    zoom: 0.5;
    top: 1.65rem;
    left: 1.6rem;
    position: absolute;
}

.Sd2 {
    color: #5D5D5D;
    margin-left: 3.45rem;
    vertical-align: super;
    display: inline-block;
    margin-top: 1.2rem;
}

footer {
    height: 4.95rem;
    border-top: 1px solid #E1E5E7;
    background-color: #F8FAFB;
    display: flex;
    justify-content: space-around;
    position: fixed;
    width: 100%;
    bottom: 0;
}

.icon4 {
    background: url(./css_sprites\ \(1\).png) no-repeat;
    background-position: -72px -10px;
    width: 2.3rem;
    height: 2rem;
    display: block;
    zoom: .5;
    margin: auto;
    margin-top: .6rem;
}

.home-page {
    font-size: 10px;
    color: #5FC0CD;
    border: 0;
    background-color: #F8FAFB;
}

.bottom-conten {
    width: 4.7rem;
    height: 4.7rem;
    background-color: #5FC0CD;
    border-radius: 50%;
    -moz-border-radius: 50%;
    -webkit-border-radius: 50%;
}

.icon5 {
    background: url(./css_sprites.png) no-repeat;
    background-position: -72px -74px;
    width: 2rem;
    height: 2rem;
    zoom: .5;
    display: block;
    margin-top: 1.35rem;
    margin-left: 1.5rem;
    border: 0;
}

.icon6 {
    background: url(./css_sprites\ \(1\).png) no-repeat;
    background-position: -10px -74px;
    width: 2.1rem;
    height: 2.1rem;
    display: block;
    zoom: .5;
    margin: auto;
    margin-top: .45rem;
}

.my {
    font-size: 10px;
    color: #999999;
    border: 0;
    background-color: #F8FAFB;
}

.menu-right {
    margin: 0 0 0 -5px;
}
.date{
    margin: 0;
    padding: 0;
    margin-left: 3.4rem;
    font-size: 1.4rem;
    display: inline-block;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

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在行高设定auto时,文字无法保持一行

2

1

布局

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

css代码
.explain{
    color: #595959;
    padding-left: 0.2rem;
}
.specialli{
    display: flex;
    align-items: center;
    margin-left: 3%;
    height: auto;
    width: 94%;
    border-bottom: 1px solid #e1e5e7;
    padding: 0.36rem 0;
}
.specialdetail{
    color: #999999;
    border-right: 1px solid #999999;
    padding-right: 0.2rem;
    padding-left: 0.2rem;
html代码
            <li class="specialli"><span class="specialdetail">自我介绍</span><span class="explain">可以洗衣、做饭、照顾老人，可以洗衣、做饭、照顾老人，可以洗衣、做饭、照顾老人，可以洗衣、做饭、照顾老人，可以洗衣、做饭、照顾老人</span></li>

该问题已被官方收录

怎么用纯css3写一个轮播图

2

1

轮播

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <link rel="stylesheet" href="../css/demo.css">
    <title>轮播图（纯CSS）</title>
</head>
<body>
<div class="wrap">
    <div class="viewport">
        <img src="../image/pic1/pic-a.png" alt="#">
        <img src="../image/pic1/pic-b.png" alt="#">
        <img src="../image/pic1/pic-c.png" alt="#">
        <img src="../image/pic1/pic-a.png" alt="#">
    </div>
</div>
</body>
</html>


CSS：
body {
     margin: 0;
     padding: 0;
    line-height: 1;
 }
html {
    font-size: 62.5%;
}
.wrap {
    width: 100vw;
    overflow: hidden;
}

.viewport {
    position: relative;
    width: 400vw;
    clear: both;
    -webkit-animation-name: carouse;
    -webkit-animation-duration: 10s;
    -webkit-animation-timing-function: linear;
    -webkit-animation-delay: 0s;
    -webkit-animation-iteration-count: infinite;
    -webkit-animation-direction: normal;
}
@keyframes carouse {
    0% {
        left: 0;
}
    10% {
        left: 0;
    }
    30% {
        left: -100vw;
    }
    40% {
        left: -100vw;
    }
    60% {
        left: -200vw;
    }
    70% {
        left: -200vw;
    }
    90% {
        left: -300vw;
    }
    95% {
        left: -300vw;
    }
}
.viewport>img {
    width: 100vw;
    float: left;
}

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改变单选框样式

2

1

表单元素

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

         
                        <label class="radio-inline">
                            <input type="radio" name="inlineRadioOptions"  value="option1"> 内径
                        </label>

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saas继承没有作用

1

1

Sass

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

//变量
$eliminate:0;
$blue:#29BDE0;
$white:#FFFFFF;
$text:auto;
$font:.26rem;
$width:80%;


//混合器
@mixin flex($x:center,$y:center){
    display: flex;
    justify-content:$x;
    align-items: $y;
}
@mixin guding{
    position: fixed;
    width: 100%;
}
@mixin box($w:.51rem,$h:.6rem){
    width: $w;
    height: $h;
}

@mixin font{
    width:$width;       
    font-size: $font;
    color: #A6A6A6;
}
@mixin button{
    width: 50%;
    height: .86rem;
    border-radius: .15rem;
    font-size: .4rem;
    color: #FFFFFF;
    
}




html{
    font-size: 312.5%;
}
body{
    padding: .72rem 0 1.2rem 0;
    margin: $eliminate;
    font-size: initial;
}
p{
    margin: $eliminate;
}

/*header 眉页*/
header{
    @include flex(space-between, center);
    @include guding;
    top: 0;
    /* border半透明 */
    border-bottom: .01rem solid rgba(200,200,200,.95);
    background: $blue;
    font-size:.34rem;
    /* 字符间距 */
    letter-spacing: .04rem;
    color: $white;

    a.left-header{
        @include box;
        margin: .1rem 0 0 .2rem;
        background: url(picture/task-css12.png) no-repeat -2.2rem -1.9rem;
    }
    a.right-header{
        @include box;
        margin:.1rem .2 rem 0 0 ;
        background: url(picture/task-css12.png) no-repeat -.96rem -1.95rem;
    }
}

/*main 主体*/
div.box{
    padding-top: .29rem;
    background: $blue;

    .logo{
        @include box(3.51rem,2.1rem );
        margin: $text;
        background: url(picture/task-css12.png) no-repeat -4.16rem 0;

        .logo-font{
            position: absolute;
            margin:1.3rem 0 0 .7rem;
            font-size: .48rem;
            /* 字符间距 */
            letter-spacing: .05rem;
            color: $white;
        }
    }
    p.introduce{
        width: $width;
        margin: .3rem $text .61rem $text;
        font-size: .33rem;
        color: #FFC865;
    }
    p.time{
            width: $width;
            margin: $text;
            font-size:$font;
            color: $white;

    }
    div.center-box{
        @extend .time;
        display: flex;

        span.font{
            margin-right: .5rem;
        }
    }

}

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在自适应的任务中为什么很少用vw，如果用了会有什么缺点

2

1

css单位

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

任务十可以用下拉框控制选中的单选按钮吗？

1

1

表单元素

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

  <form action="">
            <div class="row box-title">
                <div class="col-xs-12 model">选择箱型</div>
            </div>
            <div class="row">
                <div class="col-sm-1"></div>
                <div class="col-sm-1"></div>
                <div class="col-sm-1"></div>
            </div> 
            <div class="row box-title">
                <div class="col-xs-12 role">确定尺寸</div>
            </div>
            <div class="row box-title">
                <div class="col-xs-12 material">选择材质</div>
            </div>            
        </form>

该问题已被官方收录

占位符和混合器继承的差别是什么

2

1

sass

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 图片

class="cursor-pointer"> 文本

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