This is the sequence of steps to follow to create a root gh-pages branch. It is based on a question at [SO]
cd /path/to/repo-name
git symbolic-ref HEAD refs/heads/gh-pages
rm .git/index
git clean -fdx
echo "My GitHub Page" > index.html
| // Add on element with overflow | |
| -webkit-mask-image: -webkit-radial-gradient(white, black); |