To start, let's have a look at what CSS is and why it's so significant to modern website design. CSS stands for Cascading Style Sheets and was introduced by the web Consortium in late 1996 with the attempt to separate webpage content ( written copy, images, multimedia, etc. ) from display ( fonts, colors, layout, page structure, for example. ). Another chief target of CSS is to boost and enhance web accessibility. Previous to the advent of CSS, a web page's's HTML markup defined both content and display.
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This is the reason why CSS files are often known as'external style sheets'. With CSS, a web designer can set rules for the presentation of individual webpages or a complete site.
Traditionally, web pages were built using HTML with tables to layout the page structure and content. These cell based tables are extremely close in form to a table found in Microsoft Excel and Word. A benefit of using tables is when used properly, it closely mimics the standard page layout in print media like papers or glossy articles. However, as web technology has advanced and become more dynamic, a new era of design with bigger probabilities has appeared. A new solution to coming up with and laying out internet pages was created to damage the limits of structured table layouts. This approach is called CSS tableless design.
It is important to understand that normal table based design and CSS are not jointly exclusive ; CSS is frequently used by web developers using table based design to govern the properties of tables and other items on their web pages. On the other hand, tableless design wouldn't be possible without CSS. However instead of using tables, a tableless designer uses what are called'DIV's, which is short for'division'. CSS tells the DIV where to appear on a web page, its width and height dimensions, and its appearance i.e. If it should have a background color or image, a border, or whether it should even be plain. There are a big variety of other CSS properties that can be applied to DIVs. Rather than being constrained by the rigid grid structure of tables, DIVs can be made any size and placed anywhere on a webpage including layered on top of each other. The layout and design possibilities are essentially endless. Although the use of tables for website page structure is deprecated, tables still play an important role in CSS tableless design. Tables should be used for structuring and presenting tabular information. Therefore it's critical for CSS tableless designers to appreciate how to use tables and when they are a better and more effective solution than using strictly CSS tableless design.
By trying CSS style sheets it is highly easy to maintain visual consistency throughout your website. When using table based layouts, it is easy to lose this consistency because each internet page's style, layout, and design are frequently hard-coded individually into every page. If you need to try a change to your internet site across all pages, you may have to change the code on each individual page. With CSS, all pages can use the same CSS document for their layout and styles. If you change a property in the CSS file, the changes will be instantaneously reflected across all pages of your site. As an example, if you'd like to change font sizes and colors within your website, your external CSS file can be simply opened and the essential changes made without making the change on each and every page of your website. To change the look of your site for special or seasonal promotions, the entire site'look and feel' can be completely changed simply by changing properties in the CSS file without touching the HTML code of the web page.
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