Created
August 8, 2013 12:48
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html5 get scroll percentage
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>Get Scrollbar Percentage</title> | |
| <script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script> | |
| <script> | |
| $(document).ready(function() { | |
| $(window).scroll(function(e){ | |
| var scrollTop = $(window).scrollTop(); | |
| var docHeight = $(document).height(); | |
| var winHeight = $(window).height(); | |
| var scrollPercent = (scrollTop) / (docHeight - winHeight); | |
| var scrollPercentRounded = Math.round(scrollPercent*100)/100; | |
| $('#scrollPercentLabel>span').html(scrollPercentRounded); | |
| repositionLabel(); | |
| }); | |
| $(window).resize(function(){ | |
| repositionLabel(); | |
| }); | |
| function repositionLabel() { | |
| $('#scrollPercentLabel').css({ | |
| position:'fixed', | |
| left: ($(window).width() - $('#scrollPercentLabel').outerWidth()) / 2, | |
| top: (($(window).height() - $('#scrollPercentLabel').outerHeight()) / 2) - $('#scrollPercentLabel').height() | |
| }); | |
| } | |
| repositionLabel(); | |
| }); | |
| </script> | |
| <style> | |
| body { | |
| background-image: url('http://subtlepatterns.com/patterns/crissXcross.png'); | |
| margin: 0px; | |
| padding: 0px; | |
| } | |
| #fakeHeight { | |
| height: 6000px; | |
| width: 1px; | |
| } | |
| #scrollPercentLabel { | |
| font-family: Impact; | |
| font-size: 50px; | |
| color: #2B2B2B; | |
| background: rgba(255, 255, 255, 0.5); | |
| padding: 20px; | |
| position: absolute; | |
| top: 50%; | |
| left: 50%; | |
| box-shadow: 8px 8px 5px rgba(20, 20, 20, 1); | |
| border-radius: 15px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <p id="fakeHeight"></p> | |
| <p id="scrollPercentLabel">scrollPercent: <span>0</span></p> | |
| </body> | |
| </html> |
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