- Go to Solution Explorer
- Right-click on the Application name
- Select Add-->add new item
- Now in the window that opens, select an HTML page or new Web form
- Rename it to oscillatingbubble.aspx
![osc.gif]()
Step 2 : In this section we will create the style for the media and create the .css on the media screen. Put the given script in the Head section of the HTML or between the <head>--</head> tags. Here the CSS are used for design purposes.
CSS Script
<style>
body
{
margin: 0px;
padding: 0px;
font-family: Comic Sans MS;
outline-color: Yellow;
}
#Bubble
{
border: 2px solid #9C9898;
margin-top: 50px;
margin-left: 60px;
background-color: #00B2EE;
box-shadow: 5px 5px 8px #222;
}
.title
{
text-align: center;
font-family: Segoe UI Light, Arial, Helvetica;
font-size: 2.2em;
margin: 1em;
}
.info
{
text-align: center;
font-family: Segoe UI Light, Arial, Helvetica;
font-size: 1.2em;
margin: 0.25em;
}
</style>
Step 3 : In this part we need to work on some JavaScript. For fully understanding how the JavaScript works, download the attached .rar file and run the OscillatingBubble application.
The whole JavaScript looks as in the following.
<script>
window.requestAnimFrame = (function (callback)
{
return window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.oRequestAnimationFrame ||
window.msRequestAnimationFrame ||
function (callback)
{
window.setTimeout(callback, 1000 / 60);
};
})();
function animate(canvas)
{
var context = canvas.getContext("2d");
var date = new Date();
var time = date.getTime();
// update
var widthScale = Math.sin(time / 200) * 0.1 + 0.9;
var heightScale = -1 * Math.sin(time / 200) * 0.1 + 0.9;
// clear
context.clearRect(0, 0, canvas.width, canvas.height);
// draw
context.beginPath();
context.save();
context.translate(canvas.width / 2, canvas.height / 2);
context.scale(widthScale, heightScale);
context.arc(0, 0, 65, 0, 2 * Math.PI, false);
context.restore();
context.fillStyle = "#FFF68F";
context.fill();
context.lineWidth = 2;
context.strokeStyle = "#555";
context.stroke();
context.beginPath();
context.save();
context.translate(canvas.width / 2, canvas.height / 2);
context.scale(widthScale, heightScale);
context.arc(-30, -30, 15, 0, 2 * Math.PI, false);
context.restore();
context.fillStyle = "white";
context.fill();
// request new frame
requestAnimFrame(function ()
{
animate(canvas);
});
}
window.onload = function ()
{
var canvas = document.getElementById("Bubble");
animate(canvas);
};
</script>
Step 4 : In this section we are going to become familiar with the body part of HTML scripting. Replace this script from the body section of the oscillatingbubble.aspx page. Here we pass a #Bubble in the canvas tag.
<body style="background-color: #D1D1D1"><center>
<h1>Oscillating Bubble </h1></center>
<hr />
<canvas id="Bubble" width="500" height="200">
</canvas>
</center>
</body>
Step 5 : The complete code for the OscillatingBubble application.
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="oscillatingbubble.aspx.cs" Inherits="bouncinground._Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<style>
Copy and paste step 2 here
<script>
Copy and paste step 3 here
</script>
</head>
<body style="background-color: #D1D1D1"><center>
<h1>Oscillating Bubble </h1></center>
<hr />
<canvas id="Bubble" width="500" height="200">
</canvas>
</center>
</body>
</html>
Step 6 : Output Press F5
Note : For the accurate output of HTML5 applications, you must have the Google Chrome browser in your PC. You will see the oscillating bubble will grow and shrink as we run the application in the browser.
This is first phase of Bubble.
![osc 1.gif]()
This is the second phase of Bubble.
![osc 2.gif]()
As above given, the process will repeatedly perform the same.
Here are the some useful resources
Working With Spinning Points in HTML 5
Moving a Cursor on a Dedicated Path Using HTML 5
RoundAbout With Colors Using HTML 5
Rotate a Photo on Canvas Using HTML 5
Create Glowing Text Using HTML 5