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Align DOM Node Flexibly





align source html element with target html element flexibly.

NPM version build status Test coverage gemnasium deps npm download





  • support IE9+ chrome firefox
  • support align points and offset
  • support auto adjust according to visible area

Online Demo


import domAlign from 'dom-align';

// use domAlign
// sourceNode's initial style should be position:absolute;left:-9999px;top:-9999px;

const alignConfig = {
  points: ['tl', 'tr'],        // align top left point of sourceNode with top right point of targetNode
  offset: [10, 20],            // the offset sourceNode by 10px in x and 20px in y,
  targetOffset: ['30%','40%'], // the offset targetNode by 30% of targetNode width in x and 40% of targetNode height in y,
  overflow: { adjustX: true, adjustY: true }, // auto adjust position when sourceNode is overflowed

domAlign(sourceNode, targetNode, alignConfig);


void domAlign(source: HTMLElement, target: HTMLElement, alignConfig: Object):Function

alignConfig object details


npm install
npm start



Test Case

npm test
npm run chrome-test


npm run coverage

open coverage/ dir


dom-align is released under the MIT license.