The border width of the div is set to 2 pixels, but upon inspection it appears to be 1

Greetings! I have created the following code snippet:

<!DOCTYPE html>
<html>
<head>
  <title>Padding</title>
  <style type="text/css">
    #main {
      width: 400px;
      height: 400px;
      border: 2px black solid;
      margin: auto;
    }
  </style>
</head>
<body>
  <div id="main">
    Hello World
  </div>
</body>
</html>

Although, I specified a 2px border in my CSS code, upon inspection, it appears to be only 1.6px. Inspect

Despite adding additional CSS for the box, the dimensions seem to differ when inspected.

Answer №1

What screen resolution are you using?

Many small screens default to a display setting of 125%, which could potentially cause errors.

  • 125% resulted in a border size of 1.6
  • 100% showed a border size of 2

(It's worth noting that both resolutions worked well on Chrome, but only the 100% setting worked properly on Firefox.)

Answer №2

Consider adjusting the display scale on your computer from the recommended 125% to 100%, along with setting your browser's zoom scale to 100% as well.

The issue arises because the browser applies a scaling factor to the border-width value to ensure it displays at the exact size you specified.

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