geoffyuen

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<p style="color:#000000;text-align:center" class="has-background has-small-font-size has-very-light-gray-background-color">Gutenberg Sample Content.<br/>Put together with ❤️ by <a href="https://artisanthemes.io/">Artisan Themes</a>.</p>
<!-- /wp:paragraph -->

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<h1>This is a heading (H1)</h1>
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<h2>This is a heading (H2)</h2>

geoffyuen

// find all elements with a z-index and indicate what they are.
// uses css outline which is not supported in IE <8

function contrast(color){ return '#' + 
   (Number('0x'+color.substr(1)).toString(10) > 0xffffff/2 ? '000000' :  'ffffff'); 
}

jQuery('*')
    .filter(function(){ return $(this).css('zIndex') !== 'auto'; })
    .each(function(){