Creating and resizing an HTML5 Canvas involves setting up the canvas element in your HTML file and handling resizing events using JavaScript.
Below is a step-by-step guide on how to achieve this:
1. Create Your HTML File:
Start by creating a new HTML file and open it in a text editor.
Write the boilerplate code in html file.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
</body>
</html>
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2. Adding the canvas element in the html file:
is an HTML element introduced in HTML5. It provides a container for graphics, which can be drawn dynamically using JavaScript.
<canvas id="myCanvas"></canvas>
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id=”myCanvas”: This attribute assigns an identifier to the canvas element. This ID is used to reference the canvas element in JavaScript code for manipulation and drawing.
3. Live Preview in the Browser:
Click on the Go Live at the bottom of the Visual Studio Code or you can double click on the html file to see the live preview of the browser.
Note: Make sure you already installed the Live Server Extension
If you haven’t installed the Live Server Extension then you can install it from the extension store in VS Code.
At the left hand side click on the four square icon
Now, search “Live Server” on the search bar
Click on the first one
Click on the “Install” to install the Live Server Extension
Live Preview in the Browser
You saw nothing will be shown in the browser!!
4. Include the css in html for styling
<link rel="stylesheet" href="style.css">
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: This is an HTML element used to link external resources, such as stylesheets or icon sets, to the HTML document.
rel=”stylesheet”: This attribute specifies the relationship between the linked document and the current document. In this case, it indicates that the linked document is a stylesheet.
href=”style.css”: This attribute specifies the URL of the external resource being linked to. In this example, it points to a CSS file named “style.css” located in the same directory as the HTML document.
Now, style the canvas
#myCanvas {
border: 1px solid;
}
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Applied the border to our canvas
Now, see the preview in the browser
A rectangular box is visible now
Now, resize the height and width of canvas
#myCanvas {
border: 1px solid;
height: 400px;
width: 500px;
}
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sets the height of the canvas element to 400 pixels and the width of the canvas element to 500 pixels.
Preview will be like this…
Conclusion
By following these instructions, you have created an HTML5 Canvas element that adapts its size dynamically to the size. With this configuration, you may make canvas-based games or applications that are flexible and responsive.
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