Created
June 14, 2018 17:02
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Demo scroll anchoring
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| <!doctype html> | |
| <html lang="en"> | |
| <head> | |
| <title> | |
| Demo scroll anchoring | |
| </title> | |
| <style> | |
| body { | |
| max-width: 600px; | |
| margin: 0 auto; | |
| } | |
| .flex { | |
| display: flex; | |
| width: 100%; | |
| position: fixed; | |
| top: 0; | |
| left: 0; | |
| bottom: 0; | |
| right: 0; | |
| } | |
| .scrollable1, .scrollable2 { | |
| flex: 1; | |
| overflow-y: scroll; | |
| display: flex; | |
| } | |
| table { | |
| flex: 1; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div class="flex"> | |
| <div class="scrollable1"></div> | |
| <div class="scrollable2"></div> | |
| </div> | |
| <script> | |
| (function () { | |
| 'use strict' | |
| var ROWS = 1000 | |
| var COLUMNS = 50 | |
| var $ = document.querySelector.bind(document) | |
| var scrollable1 = $('.scrollable1') | |
| var scrollable2 = $('.scrollable2') | |
| var els = [scrollable1, scrollable2] | |
| els.forEach(el => { | |
| var table = document.createElement('table') | |
| for (var i = 0; i < ROWS; i++) { | |
| var tr = document.createElement('tr') | |
| for (var j = 0; j < COLUMNS; j++) { | |
| var td = document.createElement('td') | |
| var str = btoa(Math.random()) | |
| td.innerHTML = str.charAt(Math.floor(Math.random() * str.length)) | |
| tr.appendChild(td) | |
| } | |
| table.appendChild(tr) | |
| } | |
| el.appendChild(table) | |
| }) | |
| scrollable2.addEventListener('scroll', e => { | |
| scrollable1.scrollTop = e.target.scrollTop | |
| }) | |
| })() | |
| </script> | |
| </body> | |
| </html> |
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