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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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如何不使用JS实现侧边导航栏隐藏与显示

3

5

侧边栏

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

<header></header>
<input id="menu" type="checkbox" name="">
<label class="menu" for="menu">
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
</label>
<nav></nav><!--导航栏-->
<main></main>

https://ZZsuper.github.io/JS/TASK2/JS-TASK4-nav.css

该问题已被官方收录

fixed相对父元素定位

0

1

定位

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1;
  width: 100%;
  background-color: #29bde0;
}

该问题已被官方收录

sass的default！真正作用，继承，混合，占位符如何选择

0

1

Sass

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

如何让侧边导航栏推走footer？

1

1

侧边栏

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

footer {
    display: flex;
    justify-content: space-around;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: .85rem;
    background: #29bde0;
    div {
        width: 100%;
        line-height: .85rem;
        border-top: 1px solid white;
        text-align: center;
        button {
            vertical-align: middle;
            width: 60%;
            height: 0.435rem;
            font-size: 0.2rem;
            color: white;
            background: #fbb435;
        }
    }
}

.box {
    position: relative;
    overflow: hidden;
    input {
        display: none;
    }
    .side-nav {
        position: absolute;
        top: 0;
        bottom: 0;
        width: 70%;
        background: white;
            li {
                display: flex;
                justify-content: space-between;
                align-items: center;
                width: 100%;
                height: .5rem;
                border-bottom: 1px solid #999999; 
                list-style: none;
                &::after {
                    content: "";
                    display: inline-block;
                    width: .16rem;
                    height: .16rem;
                    transform: rotate(45deg);
                    border-top: 3px solid #69D1E9;
                    border-right: 3px solid #69D1E9;
                    margin-right: .1rem;
                }
                &:hover {
                    background: #f0f0f0;
                }
            }

    }
    #sidemenu:checked~.content {
        margin-left: 70%;
    }
    .content {
        position: relative;
        overflow: hidden;
        transition: margin-left 1s;
    }
}

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

该问题已被官方收录

sass占位符、混合宏、继承优缺点是什么，适用哪些场景？

1

1

Sass

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

@charset "UTF-8";
/*
 * @名称：base.css
 * @功能：1、重设浏览器默认样式
 *       2、设置通用原子类
*/
html {
  font-size: 62.5%;
}

/* 内外边距通常让各个浏览器样式的表现位置不同 */
body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, code, form, fieldset, legend, input, textarea, p, blockquote, th, td, hr, button, article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section {
  margin: 0;
  padding: 0;
}

/* 去掉 table cell 的边距并让其边重合*/
table {
  border-collapse: collapse;
  border-spacing: 0;
}

/* 去掉列表前的标识，li 会继承 */
ol, ul {
  list-style: none;
}

/* 让链接在 hover 状态下显示下划线 */
a {
  text-decoration: none;
  color: #000000;
}

该问题已被官方收录

侧边导航栏

0

1

侧边栏

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

body {
    padding: 0;
    margin: 0;
    background: #f0f0f0;
}

@mixin center {
    display: flex;
    align-items: center;
    flex-direction: column;
}

header {
    display: flex;
    align-items: center;
    position: fixed;
    top: 0;
    width: 100%;
    height: 3rem;
    background: #29bde0;
    z-index: 1;
    .menu {
        display: block;
        padding: .3rem 0;
        margin: 1rem;
        height: .2rem;
        width: 1.5rem;
        border-top: solid 3px #fff;
        border-bottom: solid 3px #fff;
        .row {
            border: solid 1.5px #fff;
        }
    }
}





main {
    @include center;
    margin-top: 3rem;
    .main-nav {
        display: block;
        position: relative;
        margin: 1.2rem 0;
        width: 86%;
        line-height: 4rem;
        text-align: center;
        border: solid 1px #c9c9c9;
        font-size: 1.3rem;
        color: #9a9a9a;
        background: #fff;
        .arrow {
            position: absolute;
            top: 1.46rem;
            right: 1rem;
            width: 15px;
            height: 15px;
            border-bottom: 3px solid #e7e7e7;
            border-left: 3px solid #e7e7e7;
            transform: rotate(225deg);
        }
    }
    .main-boxes {
        @include center;
        position: relative;
        width: 86%;
        border: solid 1px #c9c9c9;
        background: #fff;
        .main-title {
            width: 100%;
            line-height: 4rem;
            text-align: center;
            border-bottom: solid 1px #fbb435;
            font-size: 1.5rem;
            font-weight: 100;
            color: #fbb435;
        }
        .main-box {
            display: block;
            margin: 1.3rem 0;
            width: 80%;
            line-height: 5.5rem;
            text-align: center;
            font-size: 1.28rem;
            font-weight: 100;
            color: #fff;
            background: #69d1e9;
        }
        .main-font {
            width: 100%;
            text-align: center;
            font-size: 1.08rem;
            color: #787878;
        }
        .triangle {
            position: absolute;
            top: 16.3rem;
            right: .3rem;
            border-left: solid 20px #fbb435;
            border-top: solid 20px transparent;
            border-bottom: solid 20px transparent;
        }
        .circle {
            display: inline-block;
            margin: 1rem .2rem;
            width: .7rem;
            height: .7rem;
            border-radius: 50%;
            background: #f0f0f0;
            &:hover {
                background: #29bde0;
            }
        }
    }
}

ul,
li {
    position: relative;
    display: block;
    list-style: none;
    padding: 0;
    border-bottom: solid 1px #29bde0;
}

.menu-box {
    position: absolute;
    margin: 0;
    width: 45%;
    height: 100%;
    line-height: 3.5rem;
    font-size: 16px;
    color: #29bde0;
    background: #fff;
}

.nav {
    position: relative;
    overflow: hidden;
}

.main-box {
    position: relative;
    
}

input {
    width: 3rem;
    height: 2rem;
    outline: none !important;
    -webkit-appearance: none;
    border-radius: 0;
}

#menu:checked~.main-box {
    margin-left: 45vw;
}

.left {
    width: 1.34rem;
    height: .2rem;
    padding: .3rem 0;
    margin-left: .22rem;
    border: none;
    outline: none;
    border-top: 3px solid #fff;
    border-bottom: 3px solid #fff;
    background: #fff content-box;
}

label {
    display: block;
}

input {
    display: none;
}

.hide-arrow {
    position: absolute;
    top: 1.46rem;
    right: 1rem;
    width: 15px;
    height: 15px;
    border-bottom: 3px solid #e7e7e7;
    border-left: 3px solid #e7e7e7;
    transform: rotate(225deg);
}

该问题已被官方收录

侧边导航栏出来时，原始页面不会只显示一半，会把原始的页面在50%的宽度上显示

1

1

侧边栏

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

sass代码
@import "style";
//颜色变量
$c-blue: #29BDE0;
$c-lightblue: #69D1E9;
$c-white: #ffffff;
$c-lightgray: #C9C9C9;
$c-darkgray: #787878;
$c-gray: #9A9A9A;
$c-lime: #F0F0F0;
$c-orange: #FBB435;
//字体变量
$fz-38: .38rem;
$fz-35: .35rem;
$fz-32: .32rem;
$fz-25: .25rem;
//混合器部分
//flex混合器
@mixin flex-c($h:center, $v:center) {
    display: flex;
    justify-content: $h;
    align-items: $v;
}
//占位符
%a-style{
    >a {
        display: inline-block;
        width: 80%;
        line-height: 1.34rem;
        font-size: $fz-32;
        color: $c-white;
        background: $c-lightblue;
    }
    .trilateral::after {
        content: "";
        position: absolute;
        top: 50%;
        right: .1rem;
        margin: -.2rem -.2rem -3rem 0;
        border: solid .3rem;
        border-color: transparent transparent transparent $c-orange;
    }
}


/*全局*/

body {
    position: relative;
    input {
        display: none;
    }
    #side:checked ~.content {
        margin-left: 50%;
    }
    /*sidenav部分*/
    .sidenav {
        position: absolute;
        top: 0;
        bottom: 0;
        width: 50%;
        background: $c-white;
        li {
            @include flex-c(space-between, center);
            position: relative;
            height: 1rem;
            border-bottom: 1px solid $c-lightgray;
            a {
                margin-left: .2rem;
                font-size: $fz-38;
                color: $c-lightblue;
            }
            &::after {
                content: "";
                position: absolute;
                right: .2rem;
                top: .42rem;
                border-top: 2px solid $c-lightblue;
                border-right: 2px solid $c-lightblue;
                width: .16rem;
                height: .16rem;
                transform: rotate(45deg);
            }
            &:hover {
                background: $c-lime;
            }
        }
    }
    /*content部分*/
    .content {
        background-color: $c-white;
        position: relative;
        overflow: hidden;
        transition: margin-left 1s;
        /*header部分*/
        header {
            @include flex-c(flex-start, center);
            height: .9rem;
            background-color: $c-blue;
            label {
                margin-left: .22rem;
                padding-top: .07rem;
                padding-bottom: .07rem;
                border-top: .04rem solid currentColor;
                border-bottom: .04rem solid currentColor;
                width: .34rem;
                height: .04rem;
                color: $c-white;
                background-color: currentColor;
                background-clip: content-box;
            }
        }
        /*main部分*/
        main {
            padding: .27rem .37rem 0 .35rem;
            h3 {
                line-height: 1.16rem;
                text-align: center;
                border: .01rem solid $c-lightgray;
                font-size: $fz-35;
                font-weight: normal;
                color: $c-gray;
                background: $c-white;
                &::after {
                    content: "";
                    position: absolute;
                    right: .5rem;
                    margin-top: .5rem;
                    border-top: 2px solid;
                    border-right: 2px solid;
                    width: .15rem;
                    height: .15rem;
                    transform: rotate(45deg);
                }
            }
            ul {
                position: relative;
                margin-top: .27rem;
                text-align: center;
                border: solid .01rem $c-lightgray;
                background-color: $c-white;
                li {
                    margin-top: .27rem;
                    &:nth-child(1) {
                        margin-top: 0;
                        line-height: .9rem;
                        font-size: $fz-38;
                        color: $c-orange;
                        border-bottom: .01rem solid $c-orange;
                    }
                    &:nth-child(2),
                    &:nth-child(4),
                    &:nth-child(6) {
                        @extend %a-style;
                    }
                    &:nth-child(3),
                    &:nth-child(5),
                    &:nth-child(7) {
                        font-size: $fz-25;
                        color: $c-darkgray;
                    }
                    &:nth-child(8) {
                        @include flex-c(space-between, center);
                        width: 1rem;
                        margin: .14rem auto;
                        span {
                            border-radius: 50%;
                            width: .17rem;
                            height: .17rem;
                            &:nth-child(1) {
                                background: $c-lightblue;
                            }
                            &:nth-child(2),
                            &:nth-child(3),
                            &:nth-child(4) {
                                background-color: $c-lime;
                            }
                        }
                    }
                }
            }
        }
    }
}
html代码
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width; initial-scale=1.0;minimum-scale=1.0; maximum-scale=1.0; user-scalable=no;">
    <title>首页</title>
    <link rel="stylesheet" type="text/css" href="task13-1.css">
</head>

<body>
    <input type="checkbox" id="side">
    <ul class="sidenav">
        <li>
            <a href="">公告</a>
        </li>
        <li>
            <a href="">设置</a>
        </li>
        <li>
            <a href="">帮助</a>
        </li>
        <li>
            <a href="">关于</a>
        </li>
    </ul>
    <div class="content">
        <header>
            <label for="side"></label>
        </header>
        <main>
            <h3>上次游戏：捉鬼猜词版</h3>
            <ul>
                <li>捉鬼游戏</li>
                <li>
                    <a href="task13-2.html">简化版</a>
                </li>
                <li>有1133个用户正在玩此游戏</li>
                <li>
                    <a href="task13-2.html" class="trilateral">猜词版</a>
                </li>
                <li>有1133个用户正在玩此游戏</li>
                <li>
                    <a href="task13-2.html">白痴版</a>
                </li>
                <li>有1133个用户正在玩此游戏</li>
                <li>
                    <span></span>
                    <span></span>
                    <span></span>
                    <span></span>
                </li>
            </ul>
        </main>
    </div>
</body>

</html>

该问题已被官方收录

使用checkbox绑定侧边栏后，侧边栏却出现了显示异常

0

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

<div class="mmm">
    <div class="m-border"></div>
    <div class="m1">
        <div class="ma">
            <img src="images-task13/1.png" width="24" />
            <span class="ma1">公告</span>
        </div>
        <div class="ma">
            <img src="images-task13/5.png" height="23" width="14"/>
        </div>
    </div>
    <div class="m1">
        <div class="ma">
            <img src="images-task13/2.png" width="24" />
            <span class="ma1">设置</span>
        </div>
        <div class="ma">
            <img src="images-task13/5.png" height="23" width="14"/>
        </div>
    </div>

    <div class="m1">
        <div class="ma">
            <img src="images-task13/3.png" width="24" />
            <span class="ma1">帮助</span>
        </div>
        <div class="ma">
            <img src="images-task13/5.png" height="23" width="14"/>
        </div>
    </div>

    <div class="m1">
        <div class="ma">
            <img src="images-task13/4.png" width="24" />
            <span class="ma1">关于</span>
        </div>
        <div class="ma">
            <img src="images-task13/5.png" height="23" width="14"/>
        </div>
    </div>
</div>

<div class="checkbox1">

    <input type="checkbox" value="1" id="check1" name="" />
    <label for="check1"></label>
</div>
    <div class="nnn">

<div class="head">
    <div class="h-img"></div>
</div>

label {
  @include position(absolute,top,17px,left,25px);
  @include sprite(34px,27px,
          url(images-task13/t.png) -185px -307px no-repeat,
          scale(0.9));
  transition: all .6s ease;
  cursor: pointer;
  z-index: 3;
}
input {
  @include position(absolute,top,0px,left,0px);
}

.checkbox1 {
  @include position(absolute,top,0px,left,0px);
  width: 100%;
  overflow: hidden;
}

.checkbox1 input[type=checkbox]:checked ~ label {
  left: 80%;
}
.checkbox1 input[type=checkbox]:checked ~ .nnn{
  transform: translateX(80%);
}

.nnn {
  @include bg-c(#f0f0f0);
  transition: all .6s ease;
  height: 900px;
  z-index: 2;
}
.mmm {
  position: absolute;
  @include flex(flex,column,flex-start,center);
  @include bg-c(#fff);
  @include font(1.2em,#69D1E9,left,normal);
  @include box(80%,900px);
}
.m1 {
  @include flex(flex,row,space-between,center);
  @include padding(20px 0);
  @include box(100%,20px);
  border-bottom:1px solid #c0c0c0;
}
.ma {
  margin: 0 20px;
}
.ma1 {
  margin-left:15px;
}
.m-border{
  position: absolute;
  @include box(100%,100%);
  border-right:20px solid #29bde0;
}
input[type=checkbox] {
  visibility: hidden;
}

该问题已被官方收录

侧边导航栏出现时，不会紧贴着屏幕左边

1

1

侧边栏

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

@charset "UTF-8";
.cen-cen {
  display: flex;
  align-items: center;
  justify-content: center; }

.fixed-t {
  position: fixed;
  width: 100%;
  top: 0;
  left: 0;
  z-index: 10; }

.relative {
  position: relative; }

.absolute {
  position: absolute; }

.a-none {
  text-decoration: none; }

.a {
  width: 1rem; }

* {
  margin: 0;
  padding: 0; }

html {
  font-size: 62.5%; }

.main {
  padding: 4rem 8%;
  background-color: #F0F0F0; }

/*
    页头
*/
.header {
  height: 3rem;
  background-color: #29bde0; }

.la {
  display: inline-block;
  width: 3rem;
  height: 3rem;
  background: url("img7/BackIcon.png") no-repeat 0.5rem 0.7rem; }

/*
    侧边栏内容
*/
.cb {
  position: absolute;
  width: 80vw;
  margin-top: 3rem;
  transform: translateX(-100%);
  background-color: #fff; }

input[type="checkbox"]:checked ~ .cb,
input[type="checkbox"]:checked ~ .main {
  transform: translateX(80vw);
  transition: transform 0.4s ease; }

input[type="checkbox"] {
  display: none; }

/*
  内容
*/
.top-box {
  width: 100%;
  height: 5rem;
  background-color: #fff; }

.t-b-p {
  font-size: 1.8rem;
  color: #9a9a9a; }

.t-b-div {
  right: 0;
  width: 2rem;
  height: 3rem;
  background: url("img7/BackIcon.png") no-repeat left -3.5rem; }

/*
    捉鬼游戏
*/
.game {
  height: 4rem;
  margin-top: 1rem;
  font-size: 1.8rem;
  color: #fbb435;
  background-color: #fff;
  border-bottom: 1px solid #fbb435; }



<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1 user-scalable=no" />
    <title>Title</title>
    <link rel="stylesheet" type="text/css" href="task7-1.css">
</head>
<body>
<!--
    页头
-->
<header>
    <div class="header fixed-t">
        <label for="menu" class="la"></label>
    </div>
</header>
<input type="checkbox" id="menu">
<ul class="cb">
    <li class="cb-gg">
        <img src="img7/laba.png">
        <p>公告</p>
    </li>
    <li class="cb-li"></li>
    <li class="cb-li"></li>
    <li class="cb-li"></li>
</ul>
<!--
    内容
-->
<main class="main">
<!--
    上次游戏：捉鬼猜词
 -->
    <div class="top-box cen-cen relative">
        <p class="t-b-p">上次游戏：捉鬼猜词版</p>
        <div class="t-b-div absolute"></div>
    </div>

<!--
    捉鬼游戏
-->
    <div class="game cen-cen">
        <p class="game-p">捉鬼游戏</p>
    </div>
    <div class="content relative">
        <a class="con-a cen-cen a-none" href="#">简化版</a>
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