If the canvas looks distorted, then try to change the height and width −The default height and width of the canvas in HTML5 is of 2/1 ratio −width = 300 height = 150ExampleLet us see an example −                    #mycanvas{border:1px solid red;}                         Output

Retrieve the mouse coordinates in the click event. Now, retrieve the element by hiding your overlay, and use the following. After that, redisplay the overlay −document.elementFromPoint(x, y)You can also use the following CSS −div {    pointer-events:none; }

The min attribute of the input type number isn’t supported by Firefox, but it works correctly in Google Chrome.ExampleLet us see an example −           HTML input number                        Mention any number between 1 to 10                              

To make canvas fill the whole page, you need to be 100% in width and height of the page.* {    margin: 0;    padding: 0; } body, html {    height:100%; } #canvas {    position:absolute;    height:100%; width:100%; }

To render ASP.NET TextBox as HTML5 input type “Number”, set type="number" directly on the textbox.Let us see an example of ASP.NET TextBox −You can also use the following dynamically created the control −TextBox tb = new TextBox(); tb.Attributes.Add("Type", "number");

The flex property is a shorthand for the flex-grow, flex-shrink, and flex-basis properties. The flex property sets the flexible length on flexible items.For example −#container article {    -webkit-flex: 1 1 auto;    overflow-y: auto;    height: 0px; /*here the height is set to 0px*/ }If you want a min-height, the use height: 100px; that it is exactly the same as − min-height: 100px;#container article {    -webkit-flex: 1 1 auto;    overflow-y: auto;    height: 100px; /*here the height is set to 100px*/ }

The following is the correct way −ExampleHere is an example −           Checkbox Control                         Maths           Physics            

The parent object provides a reference to the main window from the child.The following is the parent code. The directive below triggers the iFrame to send a message to the parent window every 3 seconds. No initial message from the main window needed!var a= window.addEventListener ? "addEventListener" : "attachEvent";// here a is the event method var b= window[a];// here b is the eventer var c= a== "attachEvent" ? "onmessage" : "message";// here c is the message event // Listen to message from child window b (c, function(e) {    var d= e.message ? "message" : "data";// here d is ... Read More

To upload from local drive to the local file system, we can use −Webkitdirectory attribute on − This allows the user to select a directory by the appropriate dialog box.Filesystem API is a sandboxed filesystem, which allows us to store files on client’s machine.File API allows us to read files. Files are accessible by elementAll of the above is working fine in Google Chrome.WebKit directory is a much better option among these. Use the following for directory −webkitRequestFileSystem(    window.TEMPORARY, 5 * 1024 * 1024, function(_fs) {       fs = _fs;    }, ErrAbove, err and fs are −var fs, err = function(err) {    throw err; };

To trigger mouse event we can add −-webkit-transform: translate3d(0, 0, 0)In addition to this canvas can also be styled.Another way is to add a listener in the event mousemove,canvas.addEventListener("mousemove", this.checkMouseLocation.bind(this, this.inputs), false);By adding this listener, we can easily trigger a mouse move event in HTML5.