If you’re not a web designer, but have nevertheless experimented with HTML or popular editors like FrontPage to try to build a website, if you didn’t use cascading style sheets you probably came across most of the common problems that cascading style sheets were created to solve.
If you don’t use cascading style sheets:
However, the biggest problem will come when you decide to make a change in the look and feel of your site (for example: to change the color of your links). You will have to open each and every page you’ve ever built and manually change the link colors.
At this point, you’ve probably concluded that there must be a better way. Fortunately, there is, and that better way is to use cascading style sheets.
What are cascading style sheets?
A cascading style sheet is a separate file that contains all the style rules that tell a browser how to display a web page.
You can use a style sheet to define the attributes that are common to all pages, for example, the background, the link colors, the font type and size, the width and borders of your tables, the size and color of your headings, etc. You can also use them to create specific attributes (called “classes”) that you can refer to from any of your web pages at any moment.
How do I use a style sheet?
A style sheet is saved as a separate document. If you want a web page to follow the rules outlined in a style sheet, it must contain a link to the style sheet. When a browser requests a web page, the web page will link to the style sheet, which will in turn instruct the browser to display the web page using the style attributes defined in the style sheet.
What are the advantages of style sheets?
Style sheets ensure visual continuity throughout a site. By referring to the same style sheet, all pages in a site can display the same stylistic qualities.
Style sheets simplify your site’s maintenance. By concentrating your style definition in one external file, any change you implement in your style sheet will instantly apply to all the web pages linked to it.
By pulling the style definitions out of your pages, you will make them smaller and faster to download. This will allow you to make more efficient use of your web server space and your data transfer allowance.
For more in-depth informaton about cascade style sheets, read our cascade style sheets tutorial.
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Mario Sanchez publishes The Internet Digest ( http://www.theinternetdigest.net ), an internet marketing content site packed with useful articles and resources, and SEO Tutorial (http://www.seotutorial.info) where you can learn the basics of search engine optimization in four easy steps.
