:root {
  --g-232: #232323;
  --g-e3e: #e3e3e3;

  /* logo width setting */
  --logo-w: 264px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--g-e3e);   /* solid light gray */
  text-align: center;
}

.page {
  max-width: 100%;
  margin: 0 auto;
  padding: 40px 20px;
}

.site-header {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 60px 0;   /* extra breathing room */
  background: var(--g-e3e);
}

.logo {
  width: var(--logo-w);
  height: auto;
  display: block;
}