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HTML

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About the <head>

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. If you need things in the <head> of the document, put that code here.

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

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JavaScript

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JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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HTML 

              
                <div id="top"><br></div>

<div class="container">
  <div class="jumbotron">
    
    <div class="row">
      <div id="space">
        <div class="space_field_wrapper">
          <div class="space_field mother">
            <img src="http://www.thevintagenews.com/wp-content/uploads/2015/06/Stephen-Hawking-Date-17-05-1963.jpg" alt="Photo of a young Stephen Hawking" class="portrait rounded-circle">
          </div>
        </div>
        <div class="space_field_wrapper">
          <div class="space_field satellite">
            <div class="planet"></div>
          </div>
        </div>
        <div class="space_field_wrapper">
          <div class="space_field satellite">
            <div class="planet"></div>
          </div>
        </div>
        <div class="space_field_wrapper">
          <div class="space_field satellite">
            <div class="planet"></div>
          </div>
        </div>
      </div>
    </div>
    
    <div class="row">
      <div class="col-10">
        <h1 class="display-3">Stephen Hawking</h1>
        <p class="lead">was a British theoretical     physicist, cosmologist, author and Director of Research at the Centre for Theoretical Cosmology within the University of Cambridge. His scientific works include a collaboration with Roger Penrose on gravitational singularity theorems in the framework of general relativity and the theoretical prediction that black holes emit radiation, often called Hawking radiation. Hawking was the first to set out a theory of cosmology explained by a union of the general theory of relativity and quantum mechanics. He was a vigorous supporter of the many-worlds interpretation of quantum mechanics.</p>
      </div>
      <div class="col-2">
        
      </div>
    </div>
  </div>
  
  
  <div class="jumbotron">
    <div class="row">
      <div class="col">
        <h1 class="display-3 title">Books</h1>
      </div>
    </div>
    <div class="row">
      <div class="col-4"><h2 class="text-right">A Brief History of Time</h2></div>
      <div class="col-8">In 1988 Hawking catapulted to international prominence with the publication of A Brief History of Time. The short, informative book became an account of cosmology for the masses and offered an overview of space and time, the existence of God and the future. The work was an instant success, spending more than four years atop the London Sunday Times' best-seller list. Since its publication, it has sold millions of copies worldwide and been translated into more than 40 languages.</div>
    </div>
    
    <div class="row mt-3">
      <div class="col-4"><h2 class="text-right">The Universe in a Nutshell</h2></div>
      <div class="col-8">A Brief History of Time also wasn't as easy to understand as some had hoped. So in 2001, Hawking followed up his book with The Universe in a Nutshell, which offered a more illustrated guide to cosmology's big theories.</div>
    </div>
    
       <div class="row mt-3">
      <div class="col-4"><h2 class="text-right">A Briefer History of Time</h2></div>
      <div class="col-8">In 2005, Hawking authored the even more accessible A Briefer History of Time, which further simplified the original work's core concepts and touched upon the newest developments in the field like string theory.   
         </div>
    </div>
    
    <blockquote class="blockquote text-center mt-3 font-italic">Together these three books, along with Hawking's own research and papers, articulated the physicist's personal search for science's Holy Grail: a single unifying theory that can combine cosmology (the study of the big) with quantum mechanics (the study of the small) to explain how the universe began. This kind of ambitious thinking allowed Hawking, who claimed he could think in 11 dimensions, to lay out some big possibilities for humankind. He was convinced that time travel is possible, and that humans may indeed colonize other planets in the future.</blockquote>
    
    <div class="row mt-4">
      <div class="col-4"><h2 class="text-right">The Grand Design</h2></div>
      <div class="col-8">In September 2010, Hawking spoke against the idea that God could have created the universe in his book The Grand Design. Hawking previously argued that belief in a creator could be compatible with modern scientific theories. In this work, however, he concluded that the Big Bang was the inevitable consequence of the laws of physics and nothing more. "Because there is a law such as gravity, the universe can and will create itself from nothing," Hawking said. "Spontaneous creation is the reason there is something rather than nothing, why the universe exists, why we exist."</div>
    </div>
    
    <blockquote class="blockquote text-center mt-3 font-italic">The Grand Design was Hawking's first major publication in almost a decade. Within his new work, Hawking set out to challenge Sir Isaac Newton's belief that the universe had to have been designed by God, simply because it could not have been born from chaos. "It is not necessary to invoke God to light the blue touch paper and set the universe going," Hawking said.</blockquote>
  </div>
  
  <div class="jumbotron">
    <div class="row">
      <div class="col">
        <h1 class="display-3 title">Links</h1>
      </div>
    </div>
    <div class="row">
    <div class="col-4">
      <div class="card">
        <div class="card-body">
          <h5 class="card-title">Wikipedia</h5>
          <h6 class="card-subtitle mb-2 text-muted">Stephen Hawking</h6>
          <p class="card-text">Stephen William Hawking CH CBE FRS FRSA (/ˈstiːvən ˈhɔːkɪŋ/ (About this sound listen); 8 January 1942 – 14 March 2018) was a British...</p>
          <a href="https://en.wikipedia.org/wiki/Stephen_Hawking" target="_blank" class="card-link">Go to</a>
        </div>
      </div>
    </div>
      
       <div class="col-4">
      <div class="card">
        <div class="card-body">
          <h5 class="card-title">Hawking.org.uk</h5>
          <h6 class="card-subtitle mb-2 text-muted">Official Website</h6>
          <p class="card-text">Stephen Hawking is the former Lucasian Professor of Mathematics at the University of Cambridge and author of A Brief History of Time...</p>
          <a href="http://www.hawking.org.uk" class="card-link" target="_blank">Go to</a>
        </div>
      </div>
    </div>
      
       <div class="col-4">
      <div class="card">
        <div class="card-body">
          <h5 class="card-title">Obituary</h5>
          <h6 class="card-subtitle mb-2 text-muted">by Roger Penrose</h6>
          <p class="card-text">The image of Stephen Hawking – who has died aged 76 – in his motorised wheelchair, with head contorted slightly to one side and hands...</p>
          <a href="https://www.theguardian.com/science/2018/mar/14/stephen-hawking-obituary" class="card-link" target="_blank">Card link</a>
        </div>
      </div>
    </div>
      
    </div>
    </div>
  <div class="float-right totop">
    <a href="#top">
      <i class="fas fa-arrow-up"></i>
    </a>
  </div>
  <br><br><br>
</div>
!

CSS 

              
                body {
  height: 100%;
  background-image: url("https://cdn-images-1.medium.com/max/2000/1*LHDCHRrcUtz0hlHb7zn6PQ.jpeg");
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  background-attachment: fixed;
  overflow-x: hidden;
}

.card {
  border-radius: 10px;
}
.totop a {
  display: inline;
  color: #CCCCCC;
  border: 15px solid #FFFFFF;
  border-radius: 10%;
  width: 3px;
  height: 3px;
  overflow: hidden;
  background-color: #FFFFFF;
}

.jumbotron {
  border: 10px solid #FFF;
  border-radius: 10px;
}

.jumbotron:first-child{
  margin-top: 18px;
}

.portrait {
  width: 200px;
  height: 200px;
  border: 10px solid white;
  transform: translate(35%, 35%);
}

.title {
  margin-bottom: 18px;
}
/*Orbit Magic Starts Here*/
#space {
  position: relative;
  top: 120px;
  right:-525px;
  width: 100%;
  height: 100%;
  -webkit-transform-style: preserve-3d;
          transform-style: preserve-3d;
}
#space .space_field {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 300px;
  height: 300px;
  -webkit-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
  -webkit-transform-style: preserve-3d;
          transform-style: preserve-3d;
}
#space .space_field .planet {
  position: absolute;
  top: 50%;
  left: 50%;
  overflow: hidden;
  border-radius: 100%;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  border: 10px solid #FFF;
}
#space .space_field.mother .planet {
  width: 200px;
  height: 200px;
  background: #ff5032;
  -webkit-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
}
#space .space_field.mother .planet::before {
  content: '';
  position: absolute;
  top: 0%;
  left: 0%;
  width: 100%;
  height: 100%;
  background: #642800;
  border-radius: 100%;
  mix-blend-mode: screen;
}
#space .space_field.satellite .planet {
  left: 100%;
  width: 50px;
  height: 50px;
  background: #3250ff;
  -webkit-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
}
#space .space_field.satellite .planet::before {
  content: '';
  position: absolute;
  top: -15%;
  left: -15%;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.4);
  border-radius: 100%;
}
#space .space_field_wrapper {
  position: absolute;
  width: 100%;
  height: 100%;
  -webkit-transform-style: preserve-3d;
          transform-style: preserve-3d;
}
#space .space_field_wrapper:nth-child(1) {
  -webkit-transform: rotateZ(0deg);
          transform: rotateZ(0deg);
}
#space .space_field_wrapper:nth-child(1) .space_field.satellite {
  -webkit-animation: orbit 2400ms linear infinite;
          animation: orbit 2400ms linear infinite;
}
#space .space_field_wrapper:nth-child(1) .space_field.satellite .planet {
  -webkit-animation: planet 2400ms linear infinite;
          animation: planet 2400ms linear infinite;
  background: #37ffae;
}
#space .space_field_wrapper:nth-child(2) {
  -webkit-transform: rotateZ(-20deg);
          transform: rotateZ(-20deg);
}
#space .space_field_wrapper:nth-child(2) .space_field.satellite {
  -webkit-animation: orbit 2800ms linear infinite;
          animation: orbit 2800ms linear infinite;
}
#space .space_field_wrapper:nth-child(2) .space_field.satellite .planet {
  -webkit-animation: planet 2800ms linear infinite;
          animation: planet 2800ms linear infinite;
  background: #e4366a;
}
#space .space_field_wrapper:nth-child(3) {
  -webkit-transform: rotateZ(-40deg);
          transform: rotateZ(-40deg);
}
#space .space_field_wrapper:nth-child(3) .space_field.satellite {
  -webkit-animation: orbit 3200ms linear infinite;
          animation: orbit 3200ms linear infinite;
}
#space .space_field_wrapper:nth-child(3) .space_field.satellite .planet {
  -webkit-animation: planet 3200ms linear infinite;
          animation: planet 3200ms linear infinite;
  background: #491b88;
}
#space .space_field_wrapper:nth-child(4) {
  -webkit-transform: rotateZ(-60deg);
          transform: rotateZ(-60deg);
}
#space .space_field_wrapper:nth-child(4) .space_field.satellite {
  -webkit-animation: orbit 3600ms linear infinite;
          animation: orbit 3600ms linear infinite;
}
#space .space_field_wrapper:nth-child(4) .space_field.satellite .planet {
  -webkit-animation: planet 3600ms linear infinite;
          animation: planet 3600ms linear infinite;
  background: #7d2e68;
}

@-webkit-keyframes orbit {
  0% {
    -webkit-transform: translate(-50%, -50%) rotateY(0deg);
            transform: translate(-50%, -50%) rotateY(0deg);
  }
  100% {
    -webkit-transform: translate(-50%, -50%) rotateY(360deg);
            transform: translate(-50%, -50%) rotateY(360deg);
  }
}

@keyframes orbit {
  0% {
    -webkit-transform: translate(-50%, -50%) rotateY(0deg);
            transform: translate(-50%, -50%) rotateY(0deg);
  }
  100% {
    -webkit-transform: translate(-50%, -50%) rotateY(360deg);
            transform: translate(-50%, -50%) rotateY(360deg);
  }
}
@-webkit-keyframes planet {
  0% {
    -webkit-transform: translate(-50%, -50%) rotateY(0deg);
            transform: translate(-50%, -50%) rotateY(0deg);
  }
  100% {
    -webkit-transform: translate(-50%, -50%) rotateY(-360deg);
            transform: translate(-50%, -50%) rotateY(-360deg);
  }
}
@keyframes planet {
  0% {
    -webkit-transform: translate(-50%, -50%) rotateY(0deg);
            transform: translate(-50%, -50%) rotateY(0deg);
  }
  100% {
    -webkit-transform: translate(-50%, -50%) rotateY(-360deg);
            transform: translate(-50%, -50%) rotateY(-360deg);
  }
}
!

JS 

              
                // Only works correctly on bigger screens.
// Borrowed and slightly edited orbit animation from another pen: 
// https://codepen.io/YusukeNakaya/pen/gxymVv

$('a[href*="#"]')
  // Remove links that don't actually link to anything
  .not('[href="#"]')
  .not('[href="#0"]')
  .click(function(event) {
    // On-page links
    if (
      location.pathname.replace(/^\//, '') == this.pathname.replace(/^\//, '') 
      && 
      location.hostname == this.hostname
    ) {
      // Figure out element to scroll to
      var target = $(this.hash);
      target = target.length ? target : $('[name=' + this.hash.slice(1) + ']');
      // Does a scroll target exist?
      if (target.length) {
        // Only prevent default if animation is actually gonna happen
        event.preventDefault();
        $('html, body').animate({
          scrollTop: target.offset().top
        }, 1000, function() {
          // Callback after animation
          // Must change focus!
          var $target = $(target);
          $target.focus();
          if ($target.is(":focus")) { // Checking if the target was focused
            return false;
          } else {
            $target.attr('tabindex','-1'); // Adding tabindex for elements not focusable
            $target.focus(); // Set focus again
          };
        });
      }
    }
  });
!
999px

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