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头歌-CSS入门

23 人参与  2023年04月12日 17:11  分类 : 《随便一记》  评论

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目录

CSS从入门到精通-文本与字体样式

第1关 字体颜色、类型与大小

第2关 字体粗细与风格

第3关 文本装饰与文本布局

CSS从入门到精通-背景样式

第1关 背景颜色

第2关 背景图片

第3关 背景定位与背景关联

CSS从入门到精通-基础选择器

第1关 CSS 元素选择器

第2关 CSS 类选择器

第3关 CSS id选择器

使用HTML/CSS实现Educoder顶部导航栏

第1关 使用flex布局实现Educoder顶部导航栏容器布局

第2关 实现左侧文字导航列表

第3关 实现右侧功能图标排序

第4关 实现左侧鼠标悬停效果与选中状态


CSS从入门到精通-文本与字体样式

第1关 字体颜色、类型与大小

body {    /*背景渐变*/    background: -webkit-linear-gradient(left, #7ECABA, #E2FCCB);    /* Safari 5.1 - 6.0 */    background: -o-linear-gradient(right, #7ECABA, #E2FCCB);    /* Opera 11.1 - 12.0 */    background: -moz-linear-gradient(right, #7ECABA, #E2FCCB);    /* Firefox 3.6 - 15 */    background: linear-gradient(to right, #7ECABA, #E2FCCB);    /* 标准的语法 */    font: 100% PingFang SC, Verdana, Helvetica Neue, Microsoft Yahei, Hiragino Sans GB, Microsoft Sans Serif, WenQuanYi Micro Hei, sans-serif;    /*居中页面*/    width: 45em;    margin: 0 auto;}h1,h2 {    /* ********** BEGIN ***********/    font-family: PingFang SC, Verdana, Helvetica Neue, Microsoft Yahei, Hiragino Sans GB, Microsoft Sans Serif, WenQuanYi Micro Hei, sans-serif;    /* ********** END ***********/}h1 {    /* ********** BEGIN ***********/    font-size: 2.1875em;    /* ********** END ************/}h2 {    background-color: #eaebef;    /* ********** BEGIN ***********/    font-size: 1.75em;    color: #7d717c;    /* ********** END ************/}h3 {    background-color: white;    /* ********** BEGIN ***********/    font-size: 1.25em;    color: green;    /* ********** END ************/    padding-left: 10px;}hr {    height: 1px;    border: none;    border-top: 2px dashed #88b2d2;}footer {    margin: 10px auto;}/* CONTENT----------------------------------- */.architect {    background-color: #fff;    padding: 1.5em 1.75em;}/* :::: Intro ::::: */.intro {    background-color: #888888;    /* ********** BEGIN ***********/        color: #fefefe;    /* ********** END ************/    padding: 1px 1.875em .7em;}.intro .subhead {    /* ********** BEGIN ***********/    font-size: 1.125em;    /* ********** END ************/}.intro p {    font-size: 1.0625em;}/* :::: chapter Descriptions ::::: */.chapter p {    font-size: .9375em;}img {    border-radius: 8px;}/* :::: Links :::: */a:link {    color: #e10000;}a:visited {    color: #b44f4f;}a:hover {    color: #f00;}.intro a {    color: #fdb09d;}.intro a:hover {    color: #fec4b6;}

第2关 字体粗细与风格

body {    /*背景渐变*/    background: -webkit-linear-gradient(left, #7ECABA, #E2FCCB);    /* Safari 5.1 - 6.0 */    background: -o-linear-gradient(right, #7ECABA, #E2FCCB);    /* Opera 11.1 - 12.0 */    background: -moz-linear-gradient(right, #7ECABA, #E2FCCB);    /* Firefox 3.6 - 15 */    background: linear-gradient(to right, #7ECABA, #E2FCCB);    /* 标准的语法 */    font: 100% PingFang SC, Verdana, Helvetica Neue, Microsoft Yahei, Hiragino Sans GB, Microsoft Sans Serif, WenQuanYi Micro Hei, sans-serif;    /*居中页面*/    width: 45em;    margin: 0 auto;}h1,h2 {    /* 设置h1, h2 的font-family*/    font-family: PingFang SC, Verdana, Helvetica Neue, Microsoft Yahei, Hiragino Sans GB, Microsoft Sans Serif, WenQuanYi Micro Hei, sans-serif;    /* ********** BEGIN ***********/    font-weight: normal;    /* ********** END ***********/}h1 {    /* 设置h1元素为 35px 的字体大小 */    font-size: 2.1875em;    /* 35px/16px */}h2 {    background-color: #eaebef;    /* 设置h2元素的字体颜色为:#7d717c */    color: #7d717c;    /* 使用em的方式设置h2元素为 28px 的字体大小 */    font-size: 1.75em;    /*28px/16px */}h3 {    background-color: white;    /* 使用em的方式设置h3元素为 20px 的字体大小 */    font-size: 1.25em;    /* 设置h3元素的字体颜色为:green */    color: green;    padding-left: 10px;}hr {    height: 1px;    border: none;    border-top: 2px dashed #88b2d2;}/* 子选择器 */em,a:link,.intro .subhead {    font-weight: bold;}footer {    /* ********** BEGIN ***********/    font-weight: light;    font-style: italic;    /* ********** END ***********/    margin: 10px auto;}footer a {    font-style: normal;}/* CONTENT----------------------------------- */.architect {    background-color: #fff;    padding: 1.5em 1.75em;}/* :::: Intro ::::: */.intro {    background-color: #888888;    /* 设置 .intro 类元素的字体颜色为 #fefefe */    color: #fefefe;    padding: 1px 1.875em .7em;}.intro .subhead {    /* 使用em的方式设置 `.intro .subhead ` (intro类下得subhead子类)为 18px 的字体大小。 */    font-size: 1.125em;}.intro p {    font-size: 1.0625em;}/* :::: chapter Descriptions ::::: */.chapter p {    font-size: .9375em;}img {    border-radius: 8px;}/* :::: Links :::: */a:link {    /* 设置 a:link 元素的字体颜色为 #b44f4f */    color: #e10000;}a:visited {    color: #b44f4f;}a:hover {    color: #f00;}.intro a {    color: #fdb09d;}.intro a:hover {    color: #fec4b6;}

第3关 文本装饰与文本布局

body {    /*背景渐变*/    background: -webkit-linear-gradient(left, #7ECABA, #E2FCCB);    /* Safari 5.1 - 6.0 */    background: -o-linear-gradient(right, #7ECABA, #E2FCCB);    /* Opera 11.1 - 12.0 */    background: -moz-linear-gradient(right, #7ECABA, #E2FCCB);    /* Firefox 3.6 - 15 */    background: linear-gradient(to right, #7ECABA, #E2FCCB);    /* 标准的语法 */    font: 100% PingFang SC, Verdana, Helvetica Neue, Microsoft Yahei, Hiragino Sans GB, Microsoft Sans Serif, WenQuanYi Micro Hei, sans-serif;    /*居中页面*/    width: 45em;    margin: 0 auto;}h1,h2 {    font-family: PingFang SC, Verdana, Helvetica Neue, Microsoft Yahei, Hiragino Sans GB, Microsoft Sans Serif, WenQuanYi Micro Hei, sans-serif;    font-weight: normal;    /*********** BEGIN ***********/    text-align: center;    /************ END ************/}h1 {    /* 设置h1元素为 35px 的字体大小 */    font-size: 2.1875em;    /* 35px/16px */}h2 {    background-color: #eaebef;    /* 设置h2元素的字体颜色为:#7d717c */    color: #7d717c;    /* 使用em的方式设置h2元素为 28px 的字体大小 */    font-size: 1.75em;    /*28px/16px */}h3 {    background-color: white;    /* 使用em的方式设置h3元素为 20px 的字体大小 */    font-size: 1.25em;    /* 设置h3元素的字体颜色为:green */    color: green;    padding-left: 10px;    /*********** BEGIN ***********/    text-align: left;    /************ END ************/}p {    text-align: justify;}hr {    height: 1px;    border: none;    border-top: 2px dashed #88b2d2;}/* 子选择器 */em,a:link,.intro .subhead {    font-weight: bold;}footer {    font-weight: light;    font-style: italic;    /* ********** BEGIN ***********/    text-align: center;    /* ********** END ***********/    margin: 10px auto;}footer a {    font-style: normal;}/* CONTENT----------------------------------- */.architect {    background-color: #fff;    padding: 1.5em 1.75em;}/* :::: Intro ::::: */.intro {    background-color: #888888;    /* 设置 .intro 类元素的字体颜色为 #fefefe */    color: #fefefe;    padding: 1px 1.875em .7em;}.intro .subhead {    /* 使用em的方式设置 `.intro .subhead ` (intro类下得subhead子类)为 18px 的字体大小。 */    font-size: 1.125em;    text-align: center;}.intro p {    font-size: 1.0625em;}/* :::: chapter Descriptions ::::: */.chapter p {    font-size: .9375em;}.photos {    /*********** BEGIN ***********/    text-align: center;    /*********** END *************/}img {    border-radius: 8px;}/* :::: Links :::: *//* 默认显示样式 */a:link {    color: #e10000;    /*********** BEGIN ***********/    text-decoration: none;    /*********** END *************/}a:visited {    color: #b44f4f;}/* 鼠标放在上面的显示样式 */a:hover {    color: #f00;    /*********** BEGIN ***********/    text-decoration: underline;    /*********** END *************/}.intro a {    color: #fdb09d;}.intro a:hover {    color: #fec4b6;}

CSS从入门到精通-背景样式

第1关 背景颜色

/* ********** BEGIN ********** */body {    background-color: ivory;}/* ********** END ********** */h1 {    font-size: 40px;    text-align: center;}p {    font-size: 18px;    color: grey;    /* ********** BEGIN ********** */    background-color: lightblue;    /* ********** END ********** */}

第2关 背景图片

body {    /* ********** BEGIN ********** */    /*设置背景图片*/    background-image:url("https://www.educoder.net/attachments/download/211106") ;    /* ********** END ********** */}div {    width: 90%;    height: 100%;    margin: auto;}

第3关 背景定位与背景关联

 body {     margin-right: 200px;     /* ********** BEGIN ********** */     /*设置背景图片*/    background: url("https://www.educoder.net/attachments/download/211104") no-repeat fixed right top;     /* ********** END ********** */ } div {     width: 90%;     height: 100%;     margin: auto; }

CSS从入门到精通-基础选择器

第1关 CSS 元素选择器

<!DOCTYPE html><html lang="zh"><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>元素选择器</title>  <style type="text/css">    /* ********** BEGIN ********** */    /* 元素选择器 */    html {      background-color:#F0F0F0;    }    header {      padding:40px;      background-color:white;    }    footer {      margin-top: 20px;      font-size:0.6em;      color:grey;    }    /* ********** END ********** */  </style></head><body><div>  <header>    <li><a href="#chosen">精选</a></li>    <li><a href="#news">时事</a></li>    <li><a href="#finance">财政</a></li>    <li><a href="#think">思想</a></li>    <li><a href="#life">生活</a></li>  </header>  <div>    <section>      <h2>精选</h2>      <li>精选新闻1</li>      <li>精选新闻2</li>      <li>精选新闻3</li>    </section>    <section>      <h2>时事</h2>      <li>时事新闻1</li>      <li>时事新闻2</li>      <li>时事新闻3</li>    </section>    <section>      <h2>财政</h2>      <li>财政新闻1</li>      <li>财政新闻2</li>      <li>财政新闻3</li>    </section>    <section>      <h2>思想</h2>      <li>思想新闻1</li>      <li>思想新闻2</li>      <li>思想新闻3</li>    </section>    <section>      <h2>生活</h2>      <li>生活新闻1</li>      <li>生活新闻2</li>      <li>生活新闻3</li>    </section>  </div>  <footer>Copyright (c) News Copyright Holder All Rights Reserved.</footer></div></body></html>

第2关 CSS 类选择器

<!DOCTYPE html><html lang="zh"><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>类选择器</title>  <style type="text/css">    /* 元素选择器 */    html {      background-color: #F0F0F0;    }    header {      padding: 40px;      background-color: white;    }    footer {      margin-top: 20px;      font-size: 0.6em;      color: grey;    }    /* 类选择器 */    .main {      margin: 10px;    }/* ********** BEGIN ********** */  .newsSection {    margin-top:20px;    padding:20px;    background-color:white;  }    /* ********** END ********** */  </style></head><body><div class="main">  <header>    <li><a href="#chosen">精选</a></li>    <li><a href="#news">时事</a></li>    <li><a href="#finance">财政</a></li>    <li><a href="#think">思想</a></li>    <li><a href="#life">生活</a></li>  </header>  <!-- ********** BEGIN ********** -->  <div class="newsSection">  <!-- ********** END ********** -->          <section>      <h2>精选</h2>      <li>精选新闻1</li>      <li>精选新闻2</li>      <li>精选新闻3</li>    </section>    <section>      <h2>时事</h2>      <li>时事新闻1</li>      <li>时事新闻2</li>      <li>时事新闻3</li>    </section>    <section>      <h2>财政</h2>      <li>财政新闻1</li>      <li>财政新闻2</li>      <li>财政新闻3</li>    </section>    <section>      <h2>思想</h2>      <li>思想新闻1</li>      <li>思想新闻2</li>      <li>思想新闻3</li>    </section>    <section>      <h2>生活</h2>      <li>生活新闻1</li>      <li>生活新闻2</li>      <li>生活新闻3</li>    </section>  </div>    <footer>Copyright (c) News Copyright Holder All Rights Reserved.</footer></div></body></html>

第3关 CSS id选择器

<!DOCTYPE html><html lang="zh"><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>ID选择器</title>  <style type="text/css">    /* 元素选择器 */    html {      background-color: #F0F0F0;    }    header {      padding: 40px;      background-color: white;    }    footer {      margin-top: 20px;      font-size: 0.6em;      color: grey;    }    /* 类选择器 */    .main {      margin: 10px;    }    .newsSection {      margin-top: 20px;      padding: 20px;      background-color: white;    }    /* ********** BEIGN ********** */    #menu {    }    #chosen {      color:red;    }    #news {      color:blue;    }    #finance {      color:olive;    }    #think {      color:green;    }    #life {      color:orange;    }        /*选择menu元素下的li子元素*/    #menu li {      float: left;      width: 70px;      font-size: 1.2em;      font-weight: lighter;    }    /*选择menu元素下的li子元素和li下得a子元素*/    #menu li, li a {      list-style: none;      text-decoration: none;    }    /* ********** END ********** */  </style></head><body><div class="main">  <!-- ********** BEGIN ********** -->  <header id="menu">  <!-- ********** END ********** -->    <li><a href="#chosen">精选</a></li>    <li><a href="#news">时事</a></li>    <li><a href="#finance">财政</a></li>    <li><a href="#think">思想</a></li>    <li><a href="#life">生活</a></li>  </header>  <div class="newsSection">    <section>      <h2 id="chosen">精选</h2>      <li>精选新闻1</li>      <li>精选新闻2</li>      <li>精选新闻3</li>    </section>    <section>      <h2 id="news">时事</h2>      <li>时事新闻1</li>      <li>时事新闻2</li>      <li>时事新闻3</li>    </section>    <section>      <h2 id="finance">财政</h2>      <li>财政新闻1</li>      <li>财政新闻2</li>      <li>财政新闻3</li>    </section>    <section>      <h2 id="think">思想</h2>      <li>思想新闻1</li>      <li>思想新闻2</li>      <li>思想新闻3</li>    </section>    <section>      <h2 id="life">生活</h2>      <li>生活新闻1</li>      <li>生活新闻2</li>      <li>生活新闻3</li>    </section>  </div>  <footer>Copyright (c) News Copyright Holder All Rights Reserved.</footer></div></body></html>

使用HTML/CSS实现Educoder顶部导航栏

第1关 使用flex布局实现Educoder顶部导航栏容器布局

<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title>Educoder</title><script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"></script><script src="step1/verify.js"></script></head><style type="text/css">body {padding: 0;margin: 0;}.color-white {color: white;}/*********** Begin ************/.container {height: 60px;display: flex;justify-content: space-between;}/*********** End ************/</style><body><div class="container"><header style="background: #24292D; min-width:1200px;"><div class="left-wrap color-white">左边容器</div><div class="right-wrap color-white">右边容器</div></header></div></body></html>

第2关 实现左侧文字导航列表

<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title>Educoder</title><script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"></script><script src="step2/verify.js"></script></head><style type="text/css">body {padding: 0;margin: 0;}.container {min-width: 1200px;}.flex {display: flex;}.full-height {height: 100%;}header {background: #24292D;height: 60px;justify-content: space-between;padding: 0 25px;}header>div {height: 100%;display: flex;align-items: center;}/*********** Begin ************/.logo-block {display: flex;align-items: center;justify-content: center;}.logo {width: 40px;height: 38px;margin-right: 30px;}.menu-item {color: #ffffff;font-size: 16px;width: 64px;height: 100%;display: flex;align-items: center;margin-right: 30px;position: relative;}.hot {position: absolute;top: 10px;right: -22px;}/*********** End ************/</style><body><div class="container"><header class="flex"><div class="left-wrap"><!--********** Begin **********--><div class="logo-block"><img src="https://data.educoder.net/images/educoder/headNavLogo.png?1526520218" class="logo">      </div><div class="menu-block full-height flex"><div class="menu-item"><span>实践课程</span></div><div class="menu-item"><span>翻转课堂</span></div><div class="menu-item"><span>实训项目</span></div><div class="menu-item"><span>在线竞赛<img class="hot" src="https://img-blog.csdnimg.cn/2022010612112358534.png"></span></div><div class="menu-item"><span>教学案例</span></div><div class="menu-item"><span>交流问答</span></div></div><!--********** End **********--></div><div class="right-wrap"></div></header></div></body></html>

第3关 实现右侧功能图标排序

<!DOCTYPE html><html lang="en"><head>  <meta charset="UTF-8">  <title>Educoder</title>  <script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"></script>  <script src="step3/verify.js"></script></head><style type="text/css">  body {    padding: 0;    margin: 0;  }  .container {    min-width: 1200px;  }  .flex {    display: flex;  }  .full-height{    height: 100%;  }  header {    background: #24292D;    height: 60px;    justify-content: space-between;    padding: 0 25px;  }  header > div {    height: 100%;    display: flex;    align-items: center;  }  .logo-block{    display: flex;    align-items: center;    justify-content: center;  }  .logo {    width: 40px;    height: 38px;    margin-right: 30px;  }  .menu-item {    color: #ffffff;    font-size: 16px;    width: 64px;    height: 100%;    display: flex;    align-items: center;    margin-right: 30px;    position: relative;  }  .hot{    position: absolute;    top: 10px;    right: -22px;  }  /*********** Begin ************/  .icon-item{    height: 100%;    width: 48px;    display: flex;    align-items: center;    justify-content: center;  }  .user{    width: 34px;    height: 34px;    margin-left: 15px;  }  /*********** End ************/</style><body><div class="container">  <header class="flex">    <div class="left-wrap">      <div class="logo-block">        <img src="https://www.educoder.net/images/educoder/headNavLogo.png?1526520218" class="logo">      </div>      <div class="menu-block full-height flex">        <div class="menu-item"><span>实践课程</span></div>        <div class="menu-item"><span>翻转课堂</span></div>        <div class="menu-item"><span>实训项目</span></div>        <div class="menu-item"><span>在线竞赛<img class="hot" src="data:image/png;base64,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"></span></div>        <div class="menu-item"><span>教学案例</span></div>        <div class="menu-item"><span>交流问答</span></div>      </div>    </div>    <div class="right-wrap">      <!--********** Begin **********-->      <div class="icon-list full-height flex">      <div class="icon-item"><img src="https://data.educoder.net/api/attachments/411643" alt=""></div>      <div class="icon-item"><img src="https://data.educoder.net/api/attachments/411644" alt=""></div>      <div class="icon-item"><img src="https://data.educoder.net/api/attachments/411645" alt=""></div>      </div>      <img class="user" src="https://data.educoder.net/images/avatars/User/b?t=1569204859650" alt="">      <!--********** End **********-->    </div>  </header></div></body></html>

第4关 实现左侧鼠标悬停效果与选中状态

<!DOCTYPE html><html lang="en"><head>  <meta charset="UTF-8">  <title>Educoder</title>  <script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"></script>  <script src="step4/verify.js"></script></head><style type="text/css">  body {    padding: 0;    margin: 0;  }  .container {    min-width: 1200px;  }  .flex {    display: flex;  }  .full-height {    height: 100%;  }  header {    background: #24292D;    height: 60px;    justify-content: space-between;    padding: 0 25px;  }  header > div {    height: 100%;    display: flex;    align-items: center;  }  .logo-block {    display: flex;    align-items: center;    justify-content: center;  }  .logo {    width: 40px;    height: 38px;    margin-right: 30px;  }  .menu-item {    color: #ffffff;    font-size: 16px;    width: 64px;    height: 100%;    display: flex;    align-items: center;    margin-right: 30px;    position: relative;    cursor: pointer;  }  .hot {    position: absolute;    top: 10px;    right: -22px;  }  .icon-item {    height: 100%;    width: 48px;    display: flex;    align-items: center;    cursor: pointer;    justify-content: center;  }  .user {    width: 34px;    height: 34px;    margin-left: 15px;    cursor: pointer;  }  /*********** Begin ************/  .menu-item:hover {    opacity:.7;  }  .active {    position:relative;    color:#459be5;  }  .active:after {    position:absolute;    content: ' ';    width: 14px;    height: 2px;    background: #459be5;    bottom: -10px;    left: 0;  }  /*********** End ************/</style><body><div class="container">  <header class="flex">    <div class="left-wrap">      <div class="logo-block">        <img src="https://www.educoder.net/images/educoder/headNavLogo.png?1526520218" class="logo">      </div>      <div class="menu-block full-height flex">        <div class="menu-item"><span class="active">实践课程</span></div>        <div class="menu-item"><span>翻转课堂</span></div>        <div class="menu-item"><span>实训项目</span></div>        <div class="menu-item"><span>在线竞赛<img class="hot"                                              src="data:image/png;base64,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"></span>        </div>        <div class="menu-item"><span>教学案例</span></div>        <div class="menu-item"><span>交流问答</span></div>      </div>    </div>    <div class="right-wrap">      <div class="icon-list full-height flex">        <div class="icon-item"><img src="https://www.educoder.net/api/attachments/411643" alt=""></div>        <div class="icon-item"><img src="https://www.educoder.net/api/attachments/411644" alt=""></div>        <div class="icon-item"><img src="https://www.educoder.net/api/attachments/411645" alt=""></div>      </div>      <img class="user" src="https://www.educoder.net/images/avatars/User/b?t=1569204859650" alt="">    </div>  </header></div></body></html>

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