html, body {
  height: 100%;
  margin: 0;

  --foot-height: 80px;
}

body {
  font-family: sans-serif;
}

#container {
  width: 90%;
  margin: 20px auto;
  padding-bottom: var(--foot-height);
}

#logo {
  text-align: center;
  margin-bottom: 40px;
}

#logo img {
  max-width: 95vw;
  height: auto;
}

main {
  font-size: 1.2em;
  width: 80%;
  margin: 0 auto;
}

footer {
  position: fixed;
  bottom: 0;
  text-align: center;
  width: 60%;
  background-color: #f57c00e6;
  padding: 5px;
  margin: 0 auto;
  left: 20vw;
  color: white;
  border-radius: 5px 5px 0 0;
  height: var(--foot-height);
  box-sizing: border-box;
}

@media screen and (max-width: 768px) {
  #container {
    width: 100%;
    margin: 10px 2px;
  }

  #logo {
    text-align: center;
    margin-bottom: 20px;
  }

  main {
    width: 90%;
    text-align: justify;
  }

  footer {
    left: 0;
    width: 100%;
  }
}