What is HTML and XHTML

[soniasyril]

xhtml must be well formed. ex: <img src="" />

html format ex: <img src="">

[DeityExMachina]

The only difference is on the Hypertext

[iBrightDev]

The Most Important Differences:

• XHTML elements must be properly nested
• XHTML elements must always be closed
• XHTML elements must be in lowercase
• XHTML documents must have one root element

In HTML, some elements can be improperly nested within each other, like this:
<b><i>This text is bold and italic</b></i>

In XHTML, all elements must be properly nested within each other, like this:
<b><i>This text is bold and italic</i></b>

both WILL work, but when validating a page for w3c compliance and proper code structure for xhtml, the top one will show error.

learn all about XHTML and HTML here...http://www.w3schools.com/xhtml/xhtml_html.asp

[fredpaul]

All I know about this topic is, these are both computer languages and written in the form of binary expressions.

[deeplist]

written in the form of binary expressions.

What??

[worlditsme]

I've never seen HTML that looks like this before

<0100101010101010101010101010101010101010>

so why you would think it was written in binary code I have no idea.

[spitser]

HTML is a predominant markup language for web pages.HTML is the basic building blocks for web pages.

Where as

XHTML is a language in which web pages are written.