Skip to content

Instantly share code, notes, and snippets.

@headquarters
Last active January 8, 2020 17:35
Show Gist options
  • Select an option

  • Save headquarters/72a4de3881a1c70d042fc2510d3c17f7 to your computer and use it in GitHub Desktop.

Select an option

Save headquarters/72a4de3881a1c70d042fc2510d3c17f7 to your computer and use it in GitHub Desktop.
Visually diffing two sites with iframes: a cheap and dirty way to manually diff two versions of the same site that might only differ by a few pixels here and there.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Compare Old and New Sites Visually</title>
<style>
body {
padding: 0;
margin: 0;
}
.container {
position: relative;
width: 1600px;
height: 1200px;
margin: auto;
}
.iframe {
border: none;
width: 1600px;
height: 1200px;
margin: 0;
padding: 0;
position: absolute;
left: 0;
top: 0;
}
#new-site {
opacity: 0.5;
}
</style>
</head>
<body>
<div id="container">
<!--
Replace the URLs below with your old and new sites. The iframes will sit on top of each other,
with the bottom one being on top and slightly transparent. This transparency allows you to
visually tell the differences between the sites
-->
<iframe src="http://example.com/old-site" class="iframe" id="old-site"></iframe>
<iframe src="http://example.com/new-site" class="iframe" id="new-site"></iframe>
</div>
</body>
</html>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment