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Code Block
languagejs
function DEBUGborders(){
   console.log("Borders on");
   var Element = document.createElement('style');
   document.head.appendChild(Element);
   var Sheet = Element.sheet;
   Sheet.insertRule("*{outline: 1px red solid;}", 0);
}

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 () DEBUGborders()

Copy pasting that code into the console and red outlines will appear.of your browser will give you red outlines of the borders of every CSS object in your browser.

For kicks I have attached a screen shot of what happens to this page when you apply this trick:

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