Two problems that occurred during w3c inspection and their solutions_html/css_WEB-ITnose

Let’s take a look at the results of the solution first

Verification website: http://validator.w3.org/

Warning Byte-Order Mark found in UTF-8 File.

The Unicode Byte-Order Mark (BOM) in UTF-8 encoded files is known to cause problems for some text editors and older browsers. You may want to consider avoiding its use until it is better supported.

(Translation: UTF-8 numbered files with BOM will have some problems in old browsers. It is recommended that you use other encoding formats to achieve Better compatibility... I don’t know if it’s misleading. Hehe)

Solution

: Use Notepad or other editors (I don’t know if vim can be used? I don’t know. Please tell me if you know~), Change the encoding to UTF-8 encoding without BOM

document type does not allow element "input" here

missing one of "p", "h1", "h2", "h3", "h4 ", "h5", "h6", "div", "pre", "address", "fieldset", "ins", "del" start-tag

(Translation: The element needs to be in "p", "h1", "h2", "h3", "h4", "h5", "h6", "div", "pre", "address", " fieldset", "ins", "del")

For example,

1 <form>2     <input type="text" name="keywords" />3 </form>

The above is wrong, but

only Just use the element to wrap the element

<form>    <fielset>        <input type="text" name="keywords" />    </fielset></form>

In addition,

in xhtml, all tags need to be closed . For example, , For example,