body{margin:0}main{display:flex;justify-content:center;width:100%}section{width:50%;margin:30px;font-family:Courier,serif;white-space:pre-wrap}@media print{section{width:100%;margin:30px;font-family:Courier,serif;white-space:pre}}@media(max-width:1400px){section{width:80%;margin:15px}}@media(max-width:930px){section{width:100%;margin:15px}}@media(max-width:640px){section{width:100%;margin:15px}}