html,
body {
  height: 100%;
  width: 100%;
  overflow: hidden;
}

body {
  margin: 0;
  font-family: Helvetica, sans-serif;
  line-height: 1.42;
  font-size: 14px;
  background-color: rgba(0, 0, 0, 1);
  color: #fff;
}

.background {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background-image: url(/src/background.jpg);
  background-position: 50% 50%;
  background-size: cover;
  background-repeat: no-repeat;
  opacity: .69;
  z-index: 0;
}

.container {
  position: relative;
  padding: 15px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.intro {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

h1 {
  font-size: 42px;
}

@media all and (min-width:481px) {
  p {
    font-size: 22px;
  }

  h1 {
    font-size: 62px;
  }
}

@media all and (min-width:769px) {
  h1 {
    font-size: 72px;
  }
}