starwarsintro.css

/*
Name: StarWarsIntro.css
URI: polarnotion.github.io/starwarsintro
Author: Polar Notion
Author URI: http://polarnotion.com/
Description: A simple CSS library for creating a Star Wars Intro Crawl. May the Force be with you.
Version: 1.0
*/

body, html{
  height: 100%;
  min-height: 100vh;
  margin: 0px;
}

.star-wars-intro {
  background: url("img/stars-bg.jpg") center center;
  background-size: cover;
  width: 100%;
  height: 100%;
  font-family: "Droid Sans", arial, verdana, sans-serif;
  font-weight: 700;
  color: #EBD71C;
  background-color: #000;
  overflow: hidden;
  position: relative;
}

.star-wars-intro p.intro-text {
  position: relative;
  max-width: 16em;
  font-size: 200%;
  font-weight: 400;
  margin: 20% auto;
  color: #4ee;
  opacity: 0;
  z-index: 1;
  text-align: center;
  -webkit-animation: intro 2s ease-out;
  -moz-animation: intro 2s ease-out;
  -ms-animation: intro 2s ease-out;
  -o-animation: intro 2s ease-out;
  animation: intro 2s ease-out;
}

.star-wars-intro .main-content{
  margin-left: auto;
  margin-right: auto;
  position: absolute;
  z-index: 3;
  width: 98%;
  height: 50em;
  bottom: 0;
  font-size: 80px;
  font-weight: bold;
  text-align: justify;
  overflow: hidden;
  transform-origin: 50% 100%;
  transform: perspective(350px) rotateX(25deg);
}

.star-wars-intro .main-content:after {
  position: absolute;
  content: ' ';
  top: 0;
  bottom: 60%;
  background-image: linear-gradient(top, rgba(0,0,0,1) 0%, transparent 100%);
  pointer-events: none;
}

.star-wars-intro .space-button {
  color: #EBD71C;
  border: 12px solid #EBD71C;
  padding: 20px;
  background: transparent;
  text-decoration: none;
  margin: 0 auto;
  display: block;
  text-align: center;
}

.star-wars-intro .space-button:hover {
  background-color: #D2BE03;
  border-color: #D2BE03;
  color: black;
}

.star-wars-intro .space-button:active,
.star-wars-intro .space-button:focus {
  background-color: #B8A40A;
  border-color: #B8A40A;
  color: black;
}

.star-wars-intro .title-content {
  position: absolute;
  top: 100%;
  animation: scroll 120s linear 4s forwards;
}

.star-wars-intro .title-content > .content-header {
  text-align: center;
}

/* Main Image Styles */

.star-wars-intro .main-logo {
  position: absolute;
  width: 2.6em;
  left: 50%;
  top: 20vh;
  font-size: 10em;
  text-align: center;
  margin-left: -1.3em;
  line-height: 0.8em;
  letter-spacing: -0.05em;
  color: #000;
  text-shadow: -2px -2px 0 #EBD71C, 2px -2px 0 #EBD71C, -2px 2px 0 #EBD71C, 2px 2px 0 #EBD71C;
  opacity: 0;
  z-index: 1;
  -webkit-animation: logo 5s ease-out 2.5s;
  -moz-animation: logo 5s ease-out 2.5s;
  -ms-animation: logo 5s ease-out 2.5s;
  -o-animation: logo 5s ease-out 2.5s;
  animation: logo 5s ease-out 2.5s;
}

.star-wars-intro .main-logo > img {
  max-width: 100%;
}

@-webkit-keyframes intro {
  0% { opacity: 1; }
  90% { opacity: 1; }
  100% { opacity: 0; }
}

@-moz-keyframes intro {
  0% { opacity: 1; }
  90% { opacity: 1; }
  100% { opacity: 0; }
}

@-ms-keyframes intro {
  0% { opacity: 1; }
  90% { opacity: 1; }
  100% { opacity: 0; }
}

@-o-keyframes intro {
  0% { opacity: 1; }
  90% { opacity: 1; }
  100% { opacity: 0; }
}

@keyframes intro {
  0% { opacity: 1; }
  90% { opacity: 1; }
  100% { opacity: 0; }
}


@-webkit-keyframes logo {
  0% { -webkit-transform: scale(1); opacity: 1; }
  50% { opacity: 1; }
  100% { -webkit-transform: scale(0.1); opacity: 0; }
}

@-moz-keyframes logo {
  0% { -moz-transform: scale(1); opacity: 1; }
  50% { opacity: 1; }
  100% { -moz-transform: scale(0.1); opacity: 0; }
}

@-ms-keyframes logo {
  0% { -ms-transform: scale(1); opacity: 1; }
  50% { opacity: 1; }
  100% { -ms-transform: scale(0.1); opacity: 0; }
}

@-o-keyframes logo {
  0% { -o-transform: scale(1); opacity: 1; }
  50% { opacity: 1; }
  100% { -o-transform: scale(0.1); opacity: 0; }
}

@keyframes logo {
  0% { transform: scale(1); opacity: 1; }
  50% { opacity: 1; }
  100% { transform: scale(0.1); opacity: 0; }
}

@keyframes scroll {
  0% { top: 100%; }
  100% { top: -170%; }
}

@media screen and (max-width: 720px) {
  .star-wars-intro .main-content {
    font-size: 35px;
  }
  .star-wars-intro .title-content {
    position: absolute;
    top: 100%;
    animation: scroll 100s linear 4s forwards;
  }
}