By Steven Holzner
You do not need to attend to start utilizing HTML5, the successor to HTML four and XHTML. HTML5 is now being applied within the most recent models of all of the significant browsers, and with it come one of the most intriguing and robust advances in net improvement know-how in years. train your self HTML5 in 10 mins deals effortless, functional solutions for quick effects. by way of operating in the course of the book's transparent, step by step examples, internet designers or builders new to HTML5 can examine every little thing they should understand to fast and simply wake up to hurry with HTML5.
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You do not need to attend to start utilizing HTML5, the successor to HTML four and XHTML. HTML5 is now being applied within the most recent types of all of the significant browsers, and with it come one of the most fascinating and robust advances in internet improvement know-how in years. train your self HTML5 in 10 mins deals simple, functional solutions for speedy effects.
Extra info for Sams Teach Yourself HTML5 in 10 Minutes, 5th Edition
The dataTransfer Object There is one more item you should know about—the dataTransfer that comes built in to event objects in HTML5—because it offers support for drag-and-drop operations. You access this object through the event object passed to you when drag-and-drop operations start. For example, the dataTransfer object has a property named effectAllowed that lets you specify what drag-and-drop operation is allowed. It has functions named setData() and getData() to allow you to specify what data you want to drag and drop with a draggable element, and another function named setDragImage() lets you specify the image of the item being dragged.
In this task, we’ll look at the fillRect function. You can set the fill color with the fillStyle attribute. You set this attribute to a color, which you can specify with the rgba() function. You pass the rgba() function four values: the red, green, and blue values (0–255) of the color you’re creating, and a visibility factor (0–1, where 0 means the rectangle will be invisible, and 1 means it will be fully visible). For example, to set the fill style of the canvas1 object to blue, you use this line of code: .
As an added feature, we’ll draw the triangles in red by setting the Canvas’s strokeStyle attribute to red: . 5)”; Here’s how to draw the triangles: 1. html using a text editor such as Windows WordPad. 2. getContext(‘2d’); . . stroke(); 3. html. Make sure you save this code in text format. 3, where all three overlapping triangles appear. 3 Drawing triangles. info 23 24 LESSON 2: Drawing with the Canvas Element Filling Line Art You can also fill in the figures you draw with color. For example, here we’ll see how to draw a solid green triangle.
Sams Teach Yourself HTML5 in 10 Minutes, 5th Edition by Steven Holzner