style.css

html, body {
  height: 100%;
  width: 100%;
  margin: 0;
  box-sizing: border-box;
  font-family: 'Open Sans', sans-serif;
}

body {
  display: flex;
  flex-flow: column;
}

#map {
  height: 100%;
}

footer {
  display: flex;
  padding: 10px 20px;
  align-items: center;
  color: white;
  background: #2b5b83;
}

footer a {
  font-size: 16px;
  color: white;
}

footer a:hover, a:active {
  text-decoration: none;
}

.logo {
  width: 30px;
  height: 30px;
}

.footer-text {
  font-size: 20px;
  margin: 0 15px;
}

.space {
  flex-grow: 1;
}

.made-by {
  text-align: right;
  font-size: 14px;
}

.avatar {
  padding: 0.5rem;
}

.avatar a {
  text-decoration: none;
}

.avatar img {
  max-width: 32px !important;
  width: 100%;
  height: auto;
  border-radius: 50%;
  vertical-align: middle;
  box-shadow: 0px 0px 5px #333;
}

.avatar span {
  vertical-align: middle;
  padding-left: 0.5rem;
}

@media only screen and (max-width: 768px) {
  .footer-text {
    font-size: 14px;
  }

  footer a {
    font-size: 12px;
  }

  .made-by {
    font-size: 10px;
  }
}