sass-variables.html

<div class='container'>

  <h1>SASS - Variables</h1>
  <h2><span>Basic</span> - Getting Started</h2>

  <p id='mypara'>Lorem ipsum dolor sit amet, consectetur
  adipiscing elit, sed do eiusmod tempor <br>
  incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis
  nostrud exercitation ullamco laboris nisi</p>

</div>

sass-variables.scss

// ----
// Sass (v3.4.7)
// Compass (v1.0.1)
// ----

/* 
 * Sass Variables are defined with an $ character
 * and can have different kinds of data types: 
 *  color, string, boolean, multi-value
 */
 
$Color1: navy;                            // named color value
$Color2: #333333;                         // hex color value
$StringVar: ". It's awesome";             // string variable 
$FontSize: 18px;                          // numeric value
$border: 1px solid $Color1;              // multi-value variable
$padding: 15px 15px 15px 15px;           // multi-value variable

.container {
  width: 960px;
  margin: 0 auto;
  border: $border;
  padding: $padding;
  color: $Color2;
  h1 {
    font-size: $FontSize*3;
    color: $Color1;
    border-bottom: $border;
  }
  
  h2 {
    font-size: $FontSize*2;
  }
}

variables.css

/* 
 * Sass Variables are defined with an $ character
 * and can have different kinds of data types: 
 *  color, string, boolean, multi-value
 */
.container {
  width: 960px;
  margin: 0 auto;
  border: 1px solid navy;
  padding: 15px 15px 15px 15px;
  color: #333333;
}
.container h1 {
  font-size: 54px;
  color: navy;
  border-bottom: 1px solid navy;
}
.container h2 {
  font-size: 36px;
}