INTRODUCTION TO CSS







                         Sample of the pdf document:







What is CSS?


  • CSS, or Cascading Style Sheet, is a language that defines the presentation aspect of your HTML document.
  • HTML is the content; CSS is the presentation of that document.
  • The main purpose of CSS is the separation between content and presentation.




Adding CSS to HTML Documents

  • Inline styles
ü  Constructed where CSS codes are attached to the element at hand.
ü  It is the most specific of all because it applies to exactly one element where the CSS codes are attached.
  • Example:
<h2 style=”color: blue”>Hello World</h2>

<p style=”background-color: yellow; color: blue;”>Our fresh pizzas and hearty pasta dishes are sure to please. And don’t forget about our daily chalkboard specials!</p>

  • Embedded styles
ü  Sometimes called internal style, are constructed by placing the CSS codes within the head element of your HTML document.
ü  Embedded style sheet is contained within the style element.
ü  This style sheet applies only to the page in which they are placed.
  • Example:
<html>
 <head>
  <title>Hello World</title>
  <style type=”text/css”>
   body {
     background-color: blue;
     color: yellow;
   }

   p {
     border: 4px solid red;
     background-color: yellow;
  font-size: 24px;
     color: blue;
   }
  </style>
 </head>
 <body>
    <h1>Hello World!</h1>
 </body>
</html>

  • External styles
ü  A collection of CSS codes that is placed in a document of its own with a .css file extension.
ü  The CSS file is linked to the Web pages via the <link /> element placed in the head section of your HTML document.
  • Example:
ü  The following are the CSS codes inside the file styles.css

         body {
            background-color: blue;
            background-image: url(bg.gif);
            color: white;
            text-align: justify;
         }

         h2 {
            color: red;
            font-variant: small-caps;
            text-align: center;
            text-decoration: underline;
         }
        
         p {
            color: white;
            text-align: justify;
         }

ü  The following is the HTML code that establishes a link to an external style sheet via a link tag in the document’s head section.

<html>
   <head>
      <title>Spaghetti: Our Menu</title>
      <link rel=”stylesheet” type=”text/css" href=”styles.css” />
   </head>
   <body>
      <h2>Good eats for hungry geeks</h2>
      <p>Our fresh pizzas and hearty pasta dishes are sure to please.
 And don’t forget about our daily chalkboard specials!</p>
   </body>
</html>.......









Click here for  Download PDF / FREE
         


0 commentaires: