body,html{height:100%}footer,header,main{text-align:center}body{font-family:Arial,sans-serif;background-color:#222;color:#fff;margin:0;padding:0;display:grid;place-items:center}.container{max-width:800px;margin:0 auto;padding:20px}header{margin-bottom:20px}h1{font-size:3em}section{margin-bottom:80px}h2{font-size:1.7em}footer{margin-top:80px;padding-top:20px;border-top:1px solid #666;font-size:.9em;color:#a9a9a9}.bordered-shadow-dark-button{text-decoration:none;background-color:#222;color:#fff;border:2px solid #333;padding:17px 34px;border-radius:8px;font-size:18px;cursor:pointer;box-shadow:2px 2px 2px #000}.bordered-shadow-dark-button:hover{text-decoration:none;background-color:#333;color:#fff}.rounded-3{border-radius:1.5rem}.bg-primary{background-color:#1a137b}.p-5{padding:3rem}