html {
  height: 100%; }

body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: -webkit-linear-gradient(top, yellow 0%, red 100%);
  background: linear-gradient(to bottom, yellow 0%, red 100%);
  color: white;
  background-image: url(../images/hyper.jpg); }

main {
  max-width: 1160px;
  margin: 0 auto; }
  main h1 {
    font-size: 4em;
    line-height: 1;
    text-align: center;
    font-family: 'Indie Flower', sans-serif;
    font-weight: bolder;
    text-shadow: 2px 2px 20px white; }
    main h1 .col1, main h1 .col2 {
      display: inline-block;
      margin-right: .5em; }
    main h1 .col1 {
      text-shadow: 2px 2px 20px blue; }
    main h1 .col3 {
      text-shadow: 2px 2px 20px red; }

.cover {
  margin-bottom: .5em; }
  .cover img {
    max-width: 100%;
    border: 6px solid black;
    max-height: 100%;
    -webkit-transition: -webkit-filter .3s ease;
    transition: -webkit-filter .3s ease;
    transition: filter .3s ease;
    transition: filter .3s ease, -webkit-filter .3s ease; }
    .cover img:hover {
      -webkit-filter: saturate(15);
      filter: saturate(15);
      cursor: move; }

@-webkit-keyframes cover {
  from, to {
    border-color: transparent; }
  50% {
    border-color: red; } }

@keyframes cover {
  from, to {
    border-color: transparent; }
  50% {
    border-color: red; } }

.cover img {
  -webkit-animation: cover 1s step-end infinite;
  animation: cover 1s step-end infinite; }

.cover img:hover {
  background-color: #0bfb02; }