What is viewport in HTML.

The viewport is the part of the webpage that the user can currently see. The scrollbars move the viewport to show other parts of the page. Follow this article’s instructions to get the viewport dimensions in Javascript. if (typeof window.innerWidth != ‘undefined’) { viewportwidth = window.innerWidth, viewportheight = window.innerHeight }

Why does vw include the scrollbar as part of the viewport?

I have a different answer, and feel the need to share my frustration BECAUSE STANDARD-MAKERS ARE STUPID (committees, in general, always are) One simple (simplicistic) workaround is keeping the scrollbar always around and be dealt with it html,body {margin:0;padding:0} html{overflow-y:scroll} (use overflow-x for a layout that uses vh) I believe they seriously screwed the pooch … Read more

jquery trigger function when element is in viewport

jQuery Waypoints plugin http://imakewebthings.github.com/jquery-waypoints/ should do the trick UPDATE <!DOCTYPE html> <html lang=”en”> <head> <meta charset=”utf-8″> <title>jQuery Waypoints Plugin – Test</title> <script src=”https://ajax.googleapis.com/ajax/libs/jquery/1.6/jquery.min.js” type=”text/javascript”></script> <script src=”http://imakewebthings.github.com/jquery-waypoints/waypoints.min.js” type=”text/javascript”></script> <style type=”text/css”> #mydiv {background-color:#FF0000; margin:1500px 0;} </style> </head> <body> <div id=”mydiv”> Content goes here </div> <script type=”text/javascript”> $(function() { $(‘#mydiv’).waypoint(function() { window.location.href=”http://google.com”; }, { offset: ‘100%’ }); }); … Read more

How to know if a widget is visible within a viewport?

https://pub.dev/packages/visibility_detector provides this functionality with its VisibilityDetector widget that can wrap any other Widget and notify when the visible area of the widget changed: VisibilityDetector( key: Key(“unique key”), onVisibilityChanged: (VisibilityInfo info) { debugPrint(“${info.visibleFraction} of my widget is visible”); }, child: MyWidgetToTrack()); )

What is initial scale, user-scalable, minimum-scale, maximum-scale attribute in meta tag?

They are viewport meta tags, and is most applicable on mobile browsers. width=device-width This means, we are telling to the browser “my website adapts to your device width”. initial-scale This defines the scale of the website, This parameter sets the initial zoom level, which means 1 CSS pixel is equal to 1 viewport pixel. This … Read more

Find the exact height and width of the viewport in a cross-browser way (no Prototype/jQuery)

You might try this: function getViewport() { var viewPortWidth; var viewPortHeight; // the more standards compliant browsers (mozilla/netscape/opera/IE7) use window.innerWidth and window.innerHeight if (typeof window.innerWidth != ‘undefined’) { viewPortWidth = window.innerWidth, viewPortHeight = window.innerHeight } // IE6 in standards compliant mode (i.e. with a valid doctype as the first line in the document) else if … Read more