html {
  box-sizing: border-box;
}

*, *:before, *:after {
  box-sizing: inherit;
}

html, body, div {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
}

body {
  background: #fefefe;
  box-shadow: inset 0 0 1rem 0 rgba(0,0,0,.25);
}

.container {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2rem;
}

.logo {
  max-width: 100%;
  height: auto;
  flex: .75;
}