The technologies needed for web page development are divided into those needed by clients (HTML, CSS, XML, JavaScript, AJAX, JQuery, etc.). ). Technologies required by the server (SQL, ASP, ADO, PHP, etc. ).
Computer training/think that the training course of website development is mainly the training of the above technologies.
HTMLHTML is the language of the Web, and every Web developer needs to have a basic understanding of it.
HTML4.0 1 is an important Web standard, which is quite different from HTML3.2.
When tags such as fonts and color attributes are added to HTML3.2, it gradually becomes a nightmare for developers.
Developing a website that must add font information to every page has become a long and expensive torture.
With HTML4.0 1, all formatted information can be removed from the HTML document and put into a separate style sheet.
Another reason why HTML4.0 1 is important is that the latest HTML standard XHTML 1.0 is HTML4.0 1, which is re-expressed as an XML application.
Using HTML4.0 1 in your page can ensure that HTML can be easily upgraded to XHTML in the future.
CascadingStyleSheets-CSS, which means CSS, can define the display mode of HTML elements, similar to the role of font tags in HTML3.2.
Styles are usually saved in files other than HTML documents.
External style sheets enable you to change the appearance and layout of all pages in your website by editing a simple CSS document.
If you have ever tried to make some changes, such as changing the font or color of all page titles in the site at the same time, you will understand how CSS can get twice the result with half the effort.
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