Created
January 17, 2018 00:20
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simple vanillaJS smooth scroll
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| <html> | |
| <head> | |
| <style> | |
| #content{height: 8000px; width: 800px; margin: 0 auto; background: yellow;position: relative;} | |
| </style> | |
| </head> | |
| <body> | |
| <div id="content"> | |
| Lorem<br> | |
| Lorem<br> | |
| Lorem<br> | |
| Lorem<br> | |
| Lorem<br> | |
| Lorem<br> | |
| Lorem<br> | |
| Lorem<br> | |
| Lorem<br> | |
| Lorem<br> | |
| Lorem<br> | |
| Lorem<br> | |
| Lorem<br> | |
| Lorem<br> | |
| </div> | |
| <script> | |
| var pos = 0; | |
| var value = 0; | |
| var content = document.getElementById('content') | |
| var contentHeight = 0 | |
| var windowHeight = 0 | |
| ;(function loop() { | |
| requestAnimationFrame(loop); | |
| value += Math.round((pos-value)/4); | |
| content.style.WebkitTransform = 'translate3d(0,-'+value+'px,0)' | |
| })(); | |
| var onResize = function(e) { | |
| windowHeight = window.innerHeight | |
| contentHeight = content.offsetHeight | |
| } | |
| onResize() | |
| var onWheel = function(e) { | |
| e.preventDefault() | |
| pos = Math.min(contentHeight-windowHeight, Math.max(0, pos+e.deltaY)) | |
| } | |
| addEventListener('wheel', onWheel) | |
| addEventListener('resize', onResize) | |
| </script> | |
| </body> | |
| </html> |
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