Vendor specific code is code ment to run (or not to run) inside a specific environment determined by the vendor-name. Or, as in terms of css, a vendor prefix.
Certain experimental CSS rules are made accesible for use with a vendor prefix which will only give mening to specific web-browsers.
-o- states Opera.
-moz- = Mozilla or Firefox
-webkit- = Safari and Chrome
and
-khtml- = internet Explorer
For practical use; try Google "css round corners".
You can work on HTML in Notepad or Notepad++. These are text editors which understand HTML.
NO HTML does not work in PowerPoint. Power Point is for making slide shows and HTML is a web programming language.
HTML is generally interpreted using a "parser." The parser reads the text, and puts it together using a series of "tokens" or in the case of an HTML document, "tags" or "elements." Parsing (also call syntactical analysis) is used frequently in Computer Science. The individual browser's use various parsers, changing from vendor to vendor and sometimes from one version to the next. This difference is precisely why different browsers will render the same HTML different way.
Seriously, that makes no sense at all. If you want the definition of vendor, it's somebody that sells something. Or, do you mean what does somebody mean by vendor? If so, please provide the context. Otherwise I have no idea what you mean. Please, ask questions that actually make sense.
If you mean HTML website, just check the page source. If you mean a '.html' document, Right click and select Open With and select any text editor.
You mean the file extension, right? HTML: .html or .htm XML: .xml
<u> in HTML underlines the specified text.
HTML stands for "Hypertext Markup Language".
A "browser" is a program that can render/read HTML.
HTML cannot work without it's tags. It uses tags for it's scripting work.
The people not into web-designing do not need HTML to work. Only web designers are in the need of that.
The extension htm or html can be used for HTML files. Some computer systems only support 3 letter extensions, which is why some people only use htm for the extension. For the file itself it does not make any real difference. It is still a HTML document and will work on the internet. Browsers will open it whether it has a htm or a html extension.