Why does it appear?

Why does this appear on my site at the top? Actual web display it should be hidden?
Working through the book Build your own website the right way using HTML & CSS Ian lloyd
>html xm1ns=“http://www.w3.org/1999/xhtml”>


Is the file saved as “.html”? Windows has an annoying tendency to hide the actual file extension.

According to your post (if it was NOT simply a mistype when you posted the question)

>html xm1ns="http://www.w3.org/1999/xhtml"> 

Should be

<html xm1ns="http://www.w3.org/1999/xhtml"> 

Thanks I changed the < as you said and it’s gone. Solved!

I am glad to hear that.
Realize that a fundamental concept of HTML/XML is the format (or syntax) of the entities. You will begin to see this consistently but;
All HTML elements MUST BE contained within angle-brackets. They are intended to confine and delineate the element.
Inside that element there can be numerous attributes. Every element SHOULD contain a matching OPEN and CLOSE tag.
For example:

Some content here, which could be more HTML tags


<htmltag this_is_an_attribute="meta-data">
Some content here

Finally, some tags which do not contain data are not required to have a matching CLOSING tag. However, they ARE REQUIRED to comply with a modified format. The most familiar example is the HTML ‘image’ tag:

<img src="the_source_is_metadata" style="style_modifiers_is_metadat" />
<hr /> This is another example
<br /> And so is this

Note the way this is self-closing

These are the “formal” requirements. However, many browsers will properly interpret (and interpolate) poorly structured HTML. In the world of XML there is much less tolerance, though.

I hope I have not bored you with TOO MUCH DETAIL.