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DaveChild on 09/11/08


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alvaroisorna


JavaScript Minimum Font Size

Published in: JavaScript 

Run on document load - script checks fonts are not too small and resizes to 10pt if they are.

Embed | Plain TextExpand 
  1. function MinimumFontSize() {
  2.     // Create div with minimal content and move off-screen
  3.     var XDivElement = document.createElement('div');
  4.     XDivElement.setAttribute('id', 'xDiv');
  5.     XDivElement.innerHTML = 'm';
  6.     document.body.appendChild(XDivElement);
  7.     XDivElement = document.getElementById('xDiv');
  8.     XDivElement.style.border = '0';
  9.     XDivElement.style.padding = '0';
  10.     XDivElement.style.margin = '0';
  11.     XDivElement.style.textIndent = '0';
  12.     XDivElement.style.letterSpacing = '0';
  13.     XDivElement.style.fontSize = '1em';
  14.     XDivElement.style.position = 'absolute';
  15.     XDivElement.style.marginLeft = '-1000px';
  16.     // Element Created. Measure height.
  17.     if (XDivElement.offsetHeight < "16") {
  18.         tags = new Array ('body', 'div', 'a', 'td', 'th', 'p', 'span', 'h1', 'h2', 'h3');
  19.         for (j = 0; j < tags.length; j ++) { 
  20.             var getbody = document.getElementsByTagName(tags[j]).item(0); 
  21.             if (getbody) {
  22.                 getbody.style.fontSize = '10pt';
  23.             }
  24.         }
  25.     }
  26. }

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