CSS
Document Actions
The Cascading Style Sheets (CSS) are a number of instructions which live inside the text itself or in another file and tell the browser how to display graphically different parts of the text.
In this way the user specifies only once the instructions for the text presentation, instead of inserting them one by one inside the tag corresponding to each element.
All this allows a greater versatility and a big easiness of the management: if you want to modify the graphic format of all paragraphs in the site, you should change only one instruction in the CSS.
Style Sheets are called “cascading” because they act gerarchically at different levels:
CSS can separate contents from the shape they have when displayed. In this way, you can change the graphic aspect of the site anytime, without modifying its content.
All this allows a greater versatility and a big easiness of the management: if you want to modify the graphic format of all paragraphs in the site, you should change only one instruction in the CSS.
Style Sheets are called “cascading” because they act gerarchically at different levels:
- on the whole site or on a number of pages;
- on one single page;
- on one single element.
CSS can separate contents from the shape they have when displayed. In this way, you can change the graphic aspect of the site anytime, without modifying its content.
