body {margin:0;font-family:sans-serif;}
.site-header {background:#222;padding:10px;}
.logo{height:44px}
.hero{background:url('../img/bg-molecules.jpg') center/cover no-repeat;min-height:90vh;color:white;display:flex;align-items:center;justify-content:center;text-align:center;padding:20px}
.cta{background:#f8c24e;color:#222;padding:12px 20px;text-decoration:none;border-radius:4px}