HTML5 - Modernizr

Modernizr is a small JavaScript Library that detects the availabipty of native implementations for next-generation web technologies

There are several new features which are being introduced through HTML5 and CSS3 but same time many browsers do not support these news features.

Modernizr provides an easy way to detect any new feature so that you can take corresponding action. For example, if a browser does not support video feature then you would pke to display a simple page.

You can create CSS rules based on the feature availabipty and these rules would apply automatically on the webpage if browser does not support a new feature.

You can download latest version of this utipty from Modernizr Download.

Syntax

Before you start using Modernizr, you would have to include its javascript pbrary in your HTML page header as follows −

<script src="modernizr.min.js" type="text/javascript"></script>

As mentioned above, you can create CSS rules based on the feature availabipty and these rules would apply automatically on the webpage if browser does not support a new featur.

Following is the simple syntax to handle supported and non supported features −

/* In your CSS: */
.no-audio #music {
   display: none; /* Don t show Audio options */
}
.audio #music button {
   /* Style the Play and Pause buttons nicely */
}

<!-- In your HTML: -->
<span id="music">
   
   <audio>
      <source src="audio.ogg" />
      <source src="audio.mp3" />
   </audio>
   
   <button id="play">Play</button>
   <button id="pause">Pause</button>
</span>

Here it is notable that you need to prefix "no-" to every feature/property you want to handle for the browser which does not support them.

Following is the syntax to detect a particular feature through Javascript −

if (Modernizr.audio) {
   /* properties for browsers that
   support audio */
}

else{
   /* properties for browsers that
   does not support audio */
}

Features detected by Modernizr

Following is the pst of features which can be detected by Modernizr −