Refined Github Custom CSS

only-squash-on-merge.css

/*
* Disable Merge button and make Squash button the golden path
* Demo: https://share.cleanshot.com/liBQ8W
*/
.btn-group-merge {
  background: #8c0000;
  pointer-events: none; // disable the merge button
}

.btn-group-merge::after {
  content: "- No touchy! Squash instead!";
}

.btn-group-merge:hover {	
  background: #290000;
}

button.btn-group-squash::after {
  content: "- yessss! 🎉";
}

button.btn-group-squash:hover {
  background: #2d8016;
  text-shadow: 1px 1px #51530e59;
  box-shadow: 1px 1px 19px -2px rgba(147, 145, 0, 0.75);
}

ultra-widescreen-fix.css

/* fix for super ultra wide monitor fullscreen */

body {
  max-width: 1900px;
  margin: 0 auto;
}