CSS

CSS

1. CSS Stands for Cascading Style Sheet

   • It describes how HTML Elements are to be displayed on screen.
   • Can control the layout of multiple web pages all at once.
   • External Stylesheets are stored in CSS Files

2. A CSS rule set consists of a selector and a declaration block.

   • h1 {color:blue; font-size:12px;} Property^ Value^
   • The element selector selects elements based on the element name.
   • If you have elements with the same style definitions, you can group the selectors, to minimize the code.
   • The ID Selector uses the ID attribute of an HTML element to select a specific element.
     • An ID Should be unique within a page, so the ID selector is used if you want to select a single, unique element.
   • The Class Selector selects elements with a specific class attribute.

3. Style Sheets

   • Internal Style Sheet
     • An internal style sheet may be used if one single page has a unique identifier.
     • Internal styles are defined within the <style> element, inside the head section of an HTML page.
   • External Style Sheets
     • Each page must include a reference to the external style sheet inside the <link> element.
       • An external style sheet can be written in any text editor. The file should not contain any HTML tags. The style sheet must be saved with a .css extension.
   • Inline Style Sheet
     • An inline style may be used to apply a unique style for a single element