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Summary of coding conventions in HTML

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Aug 13, 2018 pm 03:14 PM

本篇文章给大家带来的内容是关于HTML中编码规范的总结，有一定的参考价值，有需要的朋友可以参考一下，希望对你有所帮助。

1.img标签要写alt标签
2.单标签不要写闭合标签（img、link、input、hr、br）
3.自定义属性要以data- 开头
4.td要在tr里面，li要在ul/ol里面
5.ul/ol的直接子元素只能是li
6.section里面要有标题标签
7.使用section标签增强SEO(搜索引擎优化)
8.行内元素里面不可使用块级元素(a标签里面不能放p)
9.每个页面要写
10.要用table布局写邮件模板
11.html要保持简洁，不要套太多层
12.特殊情况下才在html里面写script和style
13.样式要写在head标签里
14.html要加上lang的属性

    <html lang="en">
    <html lang="zh-CN">

15.要在head标签靠前位置写上charset和meta标签

16.特殊符号使用html实体

© &copy;
¥ &yen;
® &reg;
> >
< <
& &

17.img空src的问题

<img src="/static/imghwm/default1.png"  data-src="about:blank"  class="lazy"   alt><img  src="/static/imghwm/default1.png"  data-src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7"  class="lazy"   alt="Summary of coding conventions in HTML" >

18.关于行内元素空格和换行的影响
19.类的命名使用小写字母加中划线（hello-world)
20.不推荐使用自定义标签
21.重复杂id和重复属性
22.不推荐使用属性设置样式（canvas width height 需要写）
23.使用合适的标签
（1）如果内容是表格就使用table，table有自适应的优点；如果是一个列表就使用ol/ul标签，扩展性比较好
（2）如果是输入框就使用input，而不是写一个p标签，然后设置contenteditable=true，因为这个在IOS Safari上光标定位容易出现问题。如果需要做特殊效果除外
（3）如果是粗体就使用b/strong，而不是自己设置font-weight
（4）如果是表单就使用form标签，注意form里面不能套form
（5）如果是跳链就使用a标签，而不是自己写onclick跳转。a标签里面不能套a标签
（6）使用html5语义化标签，如导航使用nav，侧边栏使用aside，顶部和尾部使用header/footer，页面比较独立的部分可以使用article，如用户的评论。
（7）如果是按钮就应该写一个button或者<input type="button">，而不是写一个a标签设置样式，因为使用button可以设置disabled，然后使用CSS的:disabled，还有:active等伪类使用，例如在:active的时候设置按钮被按下去的感觉
（8）如果是标题就应该使用标题标签h1/h2/h3，而不是自己写一个<p class="title"></p>，相反如果内容不是标题就不要使用标题标签了
（9）在手机上使用select标签，会有原生的下拉控件，手机上原生select的下拉效果体验往往比较好，不管是IOS还是android，而使用<input type="tel">在手机上会弹一个电话号码的键盘，<input type="number"> <input type="email">都会弹相应的键盘
（10）如果是分隔线就使用hr标签，而不是自己写一个border-bottom的样式，使用hr容易进行检查
（11）如果是换行文本就应该使用p标签，而不是写br，因为p标签可以用margin设置行间距，但是如果是长文本的话使用p，因为p标签里面不能有p标签，特别是当数据是后端给的，可能会带有p标签，所以这时容器不能使用p标签。
24.不要在https的链接里写http的图片

<img  src=”//static.chimeroi.com/hello-world.jpg” alt="Summary of coding conventions in HTML" >

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