*,*:before,*:after{box-sizing:border-box}html{margin:0;padding:0}body{margin:0;padding:0;transition:background-color .3s ease,color .3s ease}#root{width:100%;height:100vh;margin:0;padding:0;text-align:center;display:flex;flex-direction:column;justify-content:start;align-items:stretch}*{transition:background-color .3s ease,color .3s ease,border-color .3s ease}