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

html {
  font-size: 62.5%; }

body {
  font-size: 16px;
  color: #ffffff;
  background-color: #00171F; }

a {
  color: #00A7E1;
  text-decoration: none; }

img, svg, image {
  max-width: 100%; }

header {
  position: relative;
  padding: 2em 0; }
  header h1 {
    width: 90%;
    text-align: center;
    margin: 0 auto;
    font-size: 2rem; }
  @media only screen and (min-width: 768px) {
    header {
      padding: 4em 0 2em; }
      header h1 {
        font-size: 3.2rem;
        font-weight: 300; } }

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