Friday, March 3, 2017

LESS - Functions

Description

LESS maps JavaScript code with manipulation of values and uses predefined functions to manipulate HTML elements aspects in the style sheet. It provides several functions to manipulate colors such as round function, floor function, ceil function, percentage function etc.

Example

The below example demonstrates use of functions in the LESS file:
<html>
<head>
   <title>Less Functions</title>
   <link rel="stylesheet" type="text/css" href="style.css" />
</head>
<body>
   <h1>Example using Functions</h1>
   <p class="mycolor">LESS enables customizable, manageable and reusable style sheet for web site.</p>
</body>
</html>
Next, create file style.less.

style.less

@color: #FF8000;
@width:1.0;
.mycolor{
color: @color;
 width: percentage(@width);
}
You can compile the style.less file to style.css by using the following command:
lessc style.less style.css
Next execute the above command, it will create style.css file automatically with the below code:

style.css

.mycolor {
  color: #FF8000;
  width: 100%;
}

Output

Let's carry out the following steps to see how above code works:
  • Save the above html code in functions.html file.
  • Open this HTML file in a browser, an output as below gets displayed.
Less Functions

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