html,body{height:100%;margin:0}body{display:flex;justify-content:center;background:#fff;font-size:1.5rem}main{color:#000;font-family:sans-serif}#heading{text-align:center;margin-bottom:100px;margin-top:50px}.logo{height:20em}.heart:after{content:"❤️";font-size:1em}h1+.subtitle{display:block;margin-top:-1em}h1{font-size:1.8rem}p{font-size:1rem}pre{white-space:pre-wrap;white-space:-moz-pre-wrap;white-space:-pre-wrap;white-space:-o-pre-wrap;word-wrap:break-word}code{background:#f2f2f2;padding:3px;border-radius:3px;display:block;font-size:.5em;width:700px}