Requisite CSS

file.css

body {
  font: 16px/1.618 "Roboto", sans-serif;
}

header {
  color: #2661a9;
  z-index: 999;
  flex-grow: 1;
  box-shadow: 0px 2px 4px -1px rgba(0, 0, 0, 0.2),
    0px 4px 5px 0px rgba(0, 0, 0, 0.14), 0px 1px 10px 0px rgba(0, 0, 0, 0.12);
  padding-top: 104px;
  padding-bottom: 104px;
  background-color: #fafafa;
  height: 100vh;
  -webkit-box-pack: center;
  justify-content: center;
  text-align: center;
  vertical-align:middle;
}

.col-centred {
  text-align: center;
}

img.logo {
  width: 250px;
  height: 250px;
  border-radius: 50%;
  box-shadow: 0px 2px 4px -1px rgba(0, 0, 0, 0.2),
    0px 4px 5px 0px rgba(0, 0, 0, 0.14), 0px 1px 10px 0px rgba(0, 0, 0, 0.12);
}

h2 {
  color: inherit;
  opacity: 0.7;
  text-align: center;
  font-weight: 300;
  margin-bottom: 3em;
}

.mec-logo {
  -webkit-box-pack: center;
  justify-content: center;
  text-align: center;
  background: #5992d8
}

footer {
  color: #f5f5f5;
  background-color: rgba(0, 0, 0, 0.87);
  height: 30vh;
}