diff --git a/_layouts/common.html b/_layouts/common.html
index ac3f59a..7855f5f 100644
--- a/_layouts/common.html
+++ b/_layouts/common.html
@@ -18,6 +18,7 @@
         <script async defer src="https://buttons.github.io/buttons.js"></script>
     </head>
     <body>
+        <a href="https://github.com/GTFOBins/GTFOBins.github.io" class="github-corner" aria-label="View source on Github"><svg width="80" height="80" viewBox="0 0 250 250" style="fill:#151513; color:#fff; position: absolute; top: 0; border: 0; right: 0;" aria-hidden="true"><path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path><path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path><path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path></svg></a><style>.github-corner:hover .octo-arm{animation:octocat-wave 560ms ease-in-out}@keyframes octocat-wave{0%,100%{transform:rotate(0)}20%,60%{transform:rotate(-25deg)}40%,80%{transform:rotate(10deg)}}@media (max-width:500px){.github-corner:hover .octo-arm{animation:none}.github-corner .octo-arm{animation:octocat-wave 560ms ease-in-out}}</style>
 {{ content }}
         <script>
          // add permalink on headings
diff --git a/style.scss b/style.scss
index 94c6870..b3d4db2 100644
--- a/style.scss
+++ b/style.scss
@@ -7,13 +7,23 @@ $hover: #ff0000;
 
 // layout
 
-@media (min-width: 1000px) {
+$column-width: 800px;
+$grace-space: 200px;
+$layout-break: "(min-width: #{$column-width + $grace-space})";
+
+@media #{$layout-break} {
     body {
-        width: 800px;
+        width: $column-width;
         margin: 0 auto;
     }
 }
 
+@media not all and #{$layout-break} {
+    .github-corner {
+        display: none;
+    }
+}
+
 // common tags
 
 body {
