[英]w3c validator gives me : Error: No p element in scope but a p end tag seen. another question can i nest a block level element inside another one?
这是错误的代码部分，我不知道我在这里做错了什么？
<ol>
<p>
<li> <em> Markup </em>is just a text that has a special meaning also it tellls the browser what the text should look like or how its arranged
</p> it says that this closing hasnt any opening tag
<p>
<li> elements with no contents in it are called "void elements" or "empty elements"
</p>
</ol>
在每个<li>的末尾添加</li> <li> 。 同样在<ol>您不需要<p>...</p>
使用时 <p class=xxx> 我在W3C合规性检查器上收到响应“范围内没有p元素，但看到ap结束标签。”
[英]When using <p class=xxx> I am getting the response “No p element in scope but a p end tag seen.” on W3C compliance checker
W3C验证程序：“看到一个开始标记，但是相同类型的元素已经打开。”
[英]W3C validator: “Start tag a seen but an element of the same type was already open.”
W3C HTML验证错误：“流浪结束标记 </head> ”和“开始标签 <body> 看到了，但是相同类型的元素已经打开了”
[英]W3C HTML validation errors: “Stray end tag </head>” and “Start tag <body> seen but an element of the same type was already open”
W3C验证器：元素头缺少子元素标题的必需实例
[英]W3C validator : Element head is missing a required instance of child element title
此时，元素li上的属性ddata-horizontalposition不允许-w3c验证程序
[英]Attribute ddata-horizontalposition not allowed on element li at this point- w3c validator
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