Question: error fix, please code- Assignment1 ul { list-style-type: none; margin: 0; padding: 0; overflow: hidden; background-color: #333; align-content: right; text-align: center; } li { float:

error fix, please

code-

Assignment1

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error-

there is no attribute X

You have used the attribute named above in your document, but the document type you are using does not support that attribute for this element. This error is often caused by incorrect use of the "Strict" document type with a document that uses frames (e.g. you must use the "Transitional" document type to get the "target" attribute), or by using vendor proprietary extensions such as "marginheight" (this is usually fixed by using CSS to achieve the desired effect instead).

This error may also result if the element itself is not supported in the document type you are using, as an undefined element will have no supported attributes; in this case, see the element-undefined error message for further information.

How to fix: check the spelling and case of the element and attribute, (Remember XHTML is all lower-case) and/or check that they are both allowed in the chosen document type, and/or use CSS instead of this attribute. If you received this error when using the element to incorporate flash media in a Web page, see the FAQ item on valid flash.

Line 5, column 19: there is no attribute "charset"

 "UTF-8">

Line 83, column 17: there is no attribute "id"

 
"home" >

Line 112, column 18: there is no attribute "for"

 
"username" style="text-align:justify">Username

Line 113, column 40: there is no attribute "placeholder"

 "Enter Username" name="username" require

X is not a member of a group specified for any attribute

Line 113, column 81: "required" is not a member of a group specified for any attribute

 >

Line 117, column 84: "required" is not a member of a group specified for any attribute

 >

Missing xmlns attribute for element X. The value should be: Y

Many Document Types based on XML need a mandatory xmlns attribute on the root element. For example, the root element for XHTML might look like:

Line 2, column 1: Missing xmlns attribute for element html. The value should be: http://www.w3.org/1999/xhtml

<html lang="en">

end tag for element X which is not open

The Validator found an end tag for the above element, but that element is not currently open. This is often caused by a leftover end tag from an element that was removed during editing, or by an implicitly closed element (if you have an error related to an element being used where it is not allowed, this is almost certainly the case). In the latter case this error will disappear as soon as you fix the original problem.

If this error occurred in a script section of your document, you should probably read this FAQ entry.

Line 112, column 78: end tag for element "label" which is not open

 
Username>

Line 116, column 76: end tag for element "label" which is not open

 
Password>

element X undefined

You have used the element named above in your document, but the document type you are using does not define an element of that name. This error is often caused by:

incorrect use of the "Strict" document type with a document that uses frames (e.g. you must use the "Frameset" document type to get the "" element),

by using vendor proprietary extensions such as "" or "" (this is usually fixed by using CSS to achieve the desired effect instead).

by using upper-case tags in XHTML (in XHTML attributes and elements must be all lower-case).

Line 83, column 24: element "header" undefined

 
>

end tag for X omitted, but OMITTAG NO was specified

You may have neglected to close an element, or perhaps you meant to "self-close" an element, that is, ending it with "/>" instead of ">".

Line 5, column 27: end tag for "meta" omitted, but OMITTAG NO was specified

 >

Line 6, column 75: end tag for "meta" omitted, but OMITTAG NO was specified

 >

Line 99, column 9: end tag for "br" omitted, but OMITTAG NO was specified

 >

Line 101, column 50: end tag for "br" omitted, but OMITTAG NO was specified

 
If you want to keep in touch with me,>

Line 102, column 32: end tag for "br" omitted, but OMITTAG NO was specified

 Please register here.>

Line 103, column 56: end tag for "br" omitted, but OMITTAG NO was specified

 It will make it easier for us to communicate.>

Line 113, column 82: end tag for "input" omitted, but OMITTAG NO was specified

 >

Line 117, column 85: end tag for "input" omitted, but OMITTAG NO was specified

 >

Line 127, column 11: end tag for "form" omitted, but OMITTAG NO was specified

 >

Line 127, column 11: end tag for "div" omitted, but OMITTAG NO was specified

 >

Line 127, column 11: end tag for "div" omitted, but OMITTAG NO was specified

 >

Line 127, column 11: end tag for "div" omitted, but OMITTAG NO was specified

 >

Line 127, column 11: end tag for "header" omitted, but OMITTAG NO was specified

 >

required attribute X not specified

The attribute given above is required for an element that you've used, but you have omitted it. For instance, in most HTML and XHTML document types the "type" attribute is required on the "script" element and the "alt" attribute is required for the "img" element.

Typical values for type are type="text/css" for