"CSS" Web Standard

Web pages consist mainly of three parts: structure (Structure), Performance (Presentation) and Behavior (Behavior)

The structure is focused on understanding:

Xhtml

1. Application Form Ccs+div 2000

2. XML-based and XML-like strict format, all tags need to be closed case sensitive requirements lowercase

3.id name can be used in conjunction with the old version browser

4.&lt &gt &amp

5.XHTML specifies that all properties must have a value, and that no value repeats itself

6. in order to be compatible with Firefox and IE browser, for the picture label, try to use ALT and title double label, simple alt tag in Firefox no picture Description!

7. How to convert HTML to XHTML here are a few things to convert HTML to XHTML: [1]

1. Add an XHTML <! doctype> to the Web page.
2. Add the xmlns attribute to each page in the HTML element.
3. Modify all the elements to lowercase.
4. Closes all empty elements.
5. Modify all the property names to lowercase.
6. All attribute values are added in quotation marks.

The focus of performance is understood:

Css

The behavioral focus is understood:

Dom and JavaScript

"CSS" Web Standard