HTML5

HTML5 <!DOCTYPE>

The HTML <!DOCTYPE> tag is used for specifying which language and version the document is using. This is referred to as the document type declaration (DTD).

With the introduction of HTML5, the <!DOCTYPE> tag is mostly useless, as HTML 5 does not require a reference to a DTD. Having said that, for legacy reasons, the HTML5 specification recommends including the <!DOCTYPE> header at the top of all HTML documents.

In HTML5, the <!DOCTYPE> declaration is much simpler than in previous versions of HTML:

<!DOCTYPE html>

Usage Example

The <!DOCTYPE> declaration must go right at the top of the page, before any other HTML code.

<!DOCTYPE html>
<html>
 <head>
 </head>
 <body>
   <p>Page content...</p>
 </body>
</html>

Note that the <!DOCTYPE> declaration is case-insensitive.

Comments

HTML 5 Comments Tag

HTML 5 Comments Tag Description The HTML 'comments' tag is used for creating comments within your HTML code. Comments aren't displayed in the browser - they are simply there for the programmer's benefit. Comments can assist you, the HTML programmer, because you can write notes to yourself that explain what the code does. This is especially useful when you have a lot of code.

Lesson 10: Margin and padding css

Lesson 10: Margin and padding In the previous lesson you were introduced to the box model. In this lesson, we will look at how you can change the presentation of elements by setting the margin and padding properties. Set the margin in an element Set the padding in an element Set the margin in an element An element has four sides: right, left, top and bottom. The margin is the distance from each side to the neighboring element (or the borders of the document). See also the diagram in lesson 9 for an illustration.

Lesson 11: Borders css

Lesson 11: Borders Borders can be used for many things, for example as a decorative element or to underline a separation of two things. CSS gives you endless options when using borders in your pages. border-width border-color border-style border The width of borders [border-width]

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