body {
  font-family: "Segoe UI", "Meiryo", sans-serif;
  background: #222;
  color: #fff;
  margin: 0;
  padding: 0;
}
#main-container {
  max-width: 8000px;
  margin: 6rem 15% 0rem 15%;
  background: #ffffff10;
  border-radius: 8px;
  box-shadow: 0 0px 10px #ffffff;
  padding: 2rem 3rem;
  flex: 1 0 auto;
}
h1,
h2,
h3,
h4,
h5,
h6,
ul {
  margin: 0;
}
a {
  color: #4eaaff;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
html,
body {
  height: 100%;
}
body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
#footer-container {
  flex-shrink: 0;
}