html5中常用的结构标签
article 文章
header 头部
nav 导航
section 区域
aside 侧边栏
hgroup 区块的相关信息
figcaption 定义figure元素的标题
footer 底部
dialog 对话框
使用习惯：
header/section/footer > aside/article/figure/hgroup/nav > div
embed可插入flash文件，但flash已经逐渐被淘汰，不建议使用
meter状态标签，可以定义电压
optimum是标准状态
low与high之间呈现绿色，其余呈现黄色
<meter value=”220” min=”20” max=”380” low=”200” high=”240” optimum=”220”></meter>
自动计算百分比
="0.75">75%</>
有步长的进度条
progress ="30" max="100"progress>
不断加载的进度条
>
datalist为input定义下拉列表
<!DOCTYPE html> html lang="en"head> Meta charset="UTF-8"title>demobodyinput placeholder="请选择手机品牌" list="phoneList"datalist id> option ="iphone">iphoneoption="samsung">samsung="huawei">huawei="oppo">oppo="htc">htcdatalisthtml>
details定义元素的详细内容，配合summary
detailssummary>HTML5p>HTML5是构建Web内容的一种语言描述方式。HTML5是互联网的下一代标准，是构建以及呈现互联网内容的一种语言方式．被认为是互联网的核心技术之一。HTML产生于1990年，1997年HTML4成为互联网标准，并广泛应用于互联网应用的开发。 HTML5是Web中核心语言HTML的规范，用户使用任何手段进行网页浏览时看到的内容原本都是HTML格式的，在浏览器中通过一些技术处理将其转换成为了可识别的信息。HTML5在从前HTML4.01的基础上进行了一定的改进，虽然技术人员在开发过程中可能不会将这些新技术投入应用，但是对于该种技术的新特性，网站开发技术人员是必须要有所了解的。 [1-2] >
ruby和rt进行拼音的注释
我们来ruby>夼rt>kuang一个话题 >
兼容浏览器的写法：
rp>(><>Kuang>)>
mark黄色选中效果
>妈妈叫我回家的时候顺路买一盒mark>牛奶>，需要很新鲜的那种。>
output表单计算
form oninput="sum.value=parseInt(num1.value)*parseInt(num2.value)"type="number" id="num1"* ="num2"= output name="sum" for="num1 num2"outputform>
date pickers在移动端效果比较好
week兼容性不好
datetime兼容性不好，推荐用datetime-local
time用来设置时间（小时和分钟）；
month用来设置年和月；
date用来设置年月日；
datetime用来设置年月日和时间；
email:="email" name="email"br url:="url"="url" tel:="tel"="tel" number:="number" date:="date"="date" month:="month"="month" week:="week"="week" time:="time"="time" datetime:="datetime"="datetime" datetime-local:="datetime-local"="datetime-local" range:="range" min="1"="10" search:="search"="search" color:="color"="color"> >
autocomplete属性规定form或input域拥有自动完成功能，该属性适用于<form>标签和<input>标签
multiple多选，适用于email和file，email中不同邮箱用,隔开
action="lesson2_1 autocomplete.html" autocomplete="on"="text" autofocus="autofocus" placeholder="您好，请在这里输入您的用户名！"="off" multiple="multiple"="file"="submit">
<link>标签中，sizes属性可以规定被链接资源的尺寸的大小
link rel="icon" href="icon.gif" type="image/gif" sizes="16x16"base href="http://localhost" target="_blank">
script:
defer 页面已完成加载后再执行脚本
async 一旦脚本可用，则异步执行
script async="async"="text/javascript" src="async.js"scriptdefer="defer"="defer.js">
ol有序列表倒序
>Olol start="2" reversed="reversed"li>Html>Html5>Css>Css3>JavaScriptol>
html页面布局demo:
demo.html ---------------------------------------- >html5="stylesheet"="style.css"> headerdiv class="container"> a ="index.html"img src="images/logo.png"anav> ="active">Home="#">Course>Actual>Plan>FAQ>Notesdivsection ="banner"ulli ="active"="images/banner/banner1.jpg"="left"="images/banner/banner3.jpg"="right"="images/banner/banner2.jpg"section="main"asideh1>Recent sampdldt>Hyper Text Markup Languagedd="images/Course/05_05.png">HTML is the standard markup language used to create web pages and its elements form the building blocks of all websites.>Cascading Style Sheets="images/Course/06_04.png">Cascading Style Sheets (CSS) is a simple mechanism for adding style (e.g.,fonts,colors,spacing) to Web documents.="images/Course/09_07.png">JavaScript is a high-level,dynamic,untyped,and interpreted programming language.>AngularJS="images/Course/02_09.png">AngularJS is an open-source web application framework mainly maintained by Google and by a community of individuals and...article>Welcome to >Massive Open Online Course!>We provide the latest knowledge to help you cope with the changing world!="images/article.jpg">We hope that all the students who love the Internet can be more convenient access to learning resources,using the Internet thinking to change our learning.>Focus on IT skills education MOOC,consistent with the development trend of the Internet down to earth's MOOC. We are free,we only teach useful,we concentrate on education.footer>Copyright © 2019 test.com All Rights Reserved.span="images/icon/weichat.png"="images/icon/sina.png"="images/icon/qq.png">
style.css
------------------------------------------
/* All tag */
* { font-family: Arial; font-size: 14px; margin: 0; padding: 0; border: none; }
a { text-decoration: none; }
ul { list-style: none; }
/* header */
header { position: relative; height: 80px; background: #000; }
header:after { position: absolute; bottom: 0; left: 0; width: 100%; height: 7px; content: ''; background: #d6d6d6; }
header > .container { position: relative; z-index: 1; width: 1200px; margin: 0 auto; }
header > .container > a { display: block; float: left; margin: 5px 25px; }
header > .container > nav { float: right; }
/* nav */
nav > a { font-size: 24px; line-height: 73px; display: block; float: left; width: 110px; height: 73px; text-align: center; color: #fff; }
nav > a:nth-child(1) { background: #433b90; }
nav > a:nth-child(2) { background: #017fcb; }
nav > a:nth-child(3) { background: #78b917; }
nav > a:nth-child(4) { background: #feb800; }
nav > a:nth-child(5) { background: #f27c01; }
nav > a:nth-child(6) { background: #d40112; }
nav > a:hover,nav > a.active { padding-bottom: 7px; }
/* banner */
.banner { position: relative; background: #eaeaea; }
.banner:after { position: absolute; bottom: 0; left: 0; width: 100%; height: 6px; content: ''; background: #d6d6d6; }
.banner > ul { position: relative; width: 1490px; height: 538px; margin: 0 auto; padding-top: 10px; }
.banner > ul > li { position: absolute; width: 610px; height: 300px; overflow: hidden; }
.banner > ul > li.active { z-index: 2; top: 37px; right: 0; left: 0; width: 960px; height: 460px; margin: auto; border: 1px solid #fff; Box-shadow: 0 30px 140px 22px rgba(0,.35); }
.banner > ul > li.left { z-index: 1; top: 0; bottom: 0; left: 0; margin: auto; Box-shadow: 0 3px 7px 0 rgba(0,.35); }
.banner > ul > li.right { z-index: 1; top: 0; right: 0; bottom: 0; margin: auto; Box-shadow: 0 3px 7px 0 rgba(0,.35); }
.banner > ul > li > img { position: absolute; left: -30%; height: 100%; }
/* main */
.main { position: relative; width: 1200px; height: 473px; margin: 34px auto 0; }
.main h1 { font-size: 30px; font-weight: lighter; margin-bottom: 23px; }
.main h1 > samp { font-size: 30px; color: #7c7c7c; }
.main > aside { float: left; width: 450px; }
.main > aside > dl { position: relative; display: block; height: 74px; margin-bottom: 17px; }
.main > aside > dl > dt { position: absolute; top: -1px; left: 92px; font-size: 16px; font-weight: bold; line-height: 16px; text-decoration: underline; }
.main > aside > dl > dd:first-of-type { position: absolute; left: 0; }
.main > aside > dl > dd:last-of-type { position: absolute; top: 20px; left: 90px; }
.main > article { float: right; width: 720px; overflow: hidden; }
.main > article > p,.main > article > img { margin-bottom: 20px; }
/* footer */
footer { position: relative; background: #000; }
footer:before { position: absolute; z-index: -1; top: -6px; left: 0; width: 100%; height: 6px; content: ''; background: #d6d6d6; }
footer > .container { width: 1200px; height: 64px; margin: 0 auto; }
footer > .container > p { line-height: 64px; float: left; color: #fff; }
footer > .container > span { float: right; margin: 14px 40px; }
footer > .container > span > img { margin-left: 4px; opacity: .7; }
footer > .container > span > img:hover { opacity: 1; cursor: pointer; }
html页面布局demo2:
>html="demo.css"table ="outer-table"<!-- 顶部 --> theadtrtd="img/logo.png" alt="logo" 主体 tbody> table> > 左侧 --> td width="12%"> p ="left-p"> >商品管理>评价管理>咨询管理b>全部订单>已完成订单>待处理订单>今日物流>月考核>季度考核>年度考核 右侧 ="88%"="inner-table"> > 查询： 至 ="order" class="inner-table" rules="all"colspan="2">宝贝信息>订单数量>单价>买家>下单时间>实付款>订单操作="img/txue.png">2019新款个性男女潮牌&暮春之行文化衫>2>120>小明>2019-2-21 21:54>240>待付款> 页脚 tfoot>2019-12-29 ©test.comdemo.css ----------------------------------- *{margin:0;padding:0;} table{width:100%;background-color: #fff;} #outer-table{background-color: #abcdef;} #outer-table tfoot td{text-align:center;height:50px;line-height: 50px;} #outer-table img{width: 150px;margin-left: 10px;} .left-p{margin-left:10px;margin-top:-250px;} .left-p span{line-height:2em;} .inner-table{border:2px solid #ccc;} .inner-table tr td{padding:10px;} #order tr td{text-align:center;} #order tr td img{width:50px;}
