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                <h1>text spacing bookmarklet</h1>

<p>Quick and dirty testing of <a href="">WCAG 2.1 Success Criterion 1.4.12 Text Spacing</a>.

<p>Experimental:<strong>use at own risk!</strong>
<p>Bookmarklet: <a href="javascript:(function(){ var style = document.createElement(%27style%27), styleContent = document.createTextNode(%27* { line-height: 1.5 !important; letter-spacing: 0.12em !important; word-spacing: 0.16em !important; } p{ margin-bottom: 2em !important; } %27); style.appendChild(styleContent ); document.getElementsByTagName(%27head%27)[0].appendChild(style); var iframes = document.querySelectorAll(%27iframe%27);for (var i=0; i<iframes.length; i++) {try{iframes[i].contentWindow.document.getElementsByTagName(%27head%27)[0].appendChild(style); } catch(error) { console.log(%27Bookmarklet error: %27+error)}}})();">Text Spacing</a> (drag to bookmarklets bar or right click and save as bookmark)
<p><a href="">Edit this</a> on codepen
<p>Last updated 26th of March 2020. Now works on content inside same-origin first level <code>iframe</code>s - i.e. it doesn't then work if there's an <code>iframe</code> inside another <code>iframe</code>. <b>Thanks to Patrick H. Lauke</b></p>



                /* rules for bookmarklet test
* {
 line-height: 1.5 !important;
 letter-spacing: 0.12em !important;
 word-spacing: 0.16em !important;

 margin-bottom: 2em !important;
} */