Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
For HTML5 validation, you need to install IntelliSense and validation support to Visual Studio. HTML5 is supported by Visual Studio 2012.VS 2010 had IntelliSense support, but VS 2012 added corresponding snippets making it fast and easy to write markup.Follow the steps: Launch Visual Studio 2012 Go to Tools > Options menu When Options configuration screen is displayed, go to Text Editor > HTML > Validation.
The elements and are useful for screenreaders as well and help visually impaired users in reading the content of your web page. These are beneficial for eBook readers as well.Let us see how to work with both the elements. HTML Section Tag Java Inheritance Inheritance defines the relationship between superclass and subclass. Learning Learn to gain experience and try to share your knowledge with others. Web Development Tutorials Consist of CSS, HTML, and PHP tutorials for 2nd Semester exams. Academic Tutorials Consist of Computer Fundamental, Computer Network tutorials for 1st Semester exams.
Yes, the official specification states cross-origin attribute as:The crossorigin attribute is a CORS settings attribute. Its purpose is to allow images from third-party sites that allow cross-origin access to be used with canvas.You can use it to solve JavaScript errors like to log js errors:if (securityOrigin()->canRequest(targetUrl)) { msg = myErroe; line = myLineNumber; source = sourceURL; } else { msg = "Error!"; source = String(); line = 0; }
To prevent HTML5 video from loading before playing, use preload attribute. You can try to run the following code: Your browser does not support the video tag.
To center SVG, add the following CSS:# svgelem { margin-left:auto; margin-right:auto; display:block; }The following is our SVG:
The HTML5 file Blob.slice() method is useful for creating a Blob object containing the data. This data is in the specified range of bytes of the source Blob.Let us see an example to send and receive binary data using slice(). This example sends a text and uses the POST method to send the "file" to the server:var val = new XMLHttpRequest(); val.open("POST", url, true); val.onload = function (event) { }; var blob = new Blob(['demo'], {type: 'text/plain'}); val.send(blob);
You can try to run the following code to learn how to work with the tag in HTML5: #svgelem{ position: relative; left: 50%; -webkit-transform: translateX(-40%); -ms-transform: translateX(-40%); transform: translateX(-40%); } SVG HTML5 SVG Star
To draw large font properly in HTML5 Canvas, you can try to run the following code:var myCanvas = document.getElementById("myCanvas"); var context = c.getContext("2d"); context.font = '180pt Georgia'; context.strokeStyle = "#FF0000"; context.fillStyle = "#FFFFFF "; context.lineWidth = 34; context.fillText("Demo!",0,200); context.strokeText("Demo!",0,200);
The rupee symbol is the following and not every browser supports it:₹To make it visible on your web page: You can use the following as well:₹
HTML5 canvas provides compositing attribute globalCompositeOperation that affect all the drawing operations. var compositeTypes = [ 'source-over','source-in','source-out','source-atop', 'destination-over','destination-in','destination-out', 'destination-atop','lighter','darker','copy','xor' ]; function drawShape(){ for (i = 0; i < compositeTypes.length; i++){ var label = document.createTextNode(compositeTypes[i]); document.getElementById('lab'+i).appendChild(label); var ctx = document.getElementById('tut'+i).getContext('2d'); // draw rectangle ctx.fillStyle = "#FF3366"; ctx.fillRect(15,15,70,70); // set composite property ctx.globalCompositeOperation = compositeTypes[i]; // draw circle ctx.fillStyle = "#0066FF"; ctx.beginPath(); ctx.arc(75,75,35,0,Math.PI*2,true); ctx.fill(); } }