html,body{margin:0;padding:0;min-height:100vh}body{display:flex;justify-content:flex-start;align-items:stretch;flex-direction:column;font-size:12pt}body main{box-sizing:border-box;flex-grow:1;background:var(--surface, #fff)}body section .section{box-sizing:border-box;max-width:800px;margin:0 auto;padding:40px}body section:nth-child(even){background:var(--surface-alt, #f8f8f8)}