body{margin:0;overflow:hidden;background-color:#222}.github-icon-container{position:fixed;bottom:10px;right:10px;width:60px;height:60px}.github-icon{display:block;width:75%;height:75%;position:relative;color:#fff;border-radius:50%;background-color:#333;box-shadow:0 4px 8px #00000080}.hidden{display:none}