1. Tepp Räisänen Liike/OAMK 2011
XHTML Elements
Tepp Räisänen
Liike/OAMK 2011

2. About the Elements An element consists of
Beginning tag
Element contents
End tag (if not an empty element)
Many elements can be used as nested structures
Elements have specific roles, e.g. h2 = second-level heading

3. Empty Elements
Some elements are used as empty elements (without any content between tags)
The end tag of the element is not written
An empty element can be a simple command (<br />) or information can be declader in the attributes ( <img />)

4. Block Elements vs. Inline Elements
Block elements can contain both block & inline elements
p, form, table…
Inline elements can only contain other inline elements
a, b, i…
Some elements can be used in both ways
applet, button, script

5. Block Elements vs. Inline Elements
Block elements appear within their parent elements:
as rectangular objects which do not break across lines;
with block margins, width and height properties which can be set independently of the surrounding elements.
Conversely, inline elements are treated as part of the flow of document text
they cannot have margins, width or height set,
and do break across lines.

6. Attributes
Attributes can be used for declaring information about an element
An attribute consists of a name and a value
The value is written inside quotes and assigned using =-symbol, e.g. alt=”my picture”

7. Attributes
To use attributes one must know the valid attributes for a specific element
Only the core attributes are available for all the elements (with a few exceptions):
class, id, style, title
dir, lang