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HTML

CSS

CSS Base

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JavaScript

Babel includes JSX processing.

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HTML

              
                <h1></h1>

<div id="div1"></div>

<p id="p1"></p>

<p id="p2">
  <a href="https://www.searchcandy.uk/"></a>
</p>

<p id="p3">
  <a href="https://codepen.io/colinmcdermott/pen/QWvwQMp"></a>
</p>
              
            
!

CSS

              
                /* Formating */

@import url("https://fonts.googleapis.com/css2?family=Open+Sans&display=swap");

html {
  font: 21px/35px "Open Sans";
  display: flex;
  justify-content: center;
}

div,
p {
  max-width: 850px;
  margin-bottom: 1em;
}

/* Start experiment */

h1::before {
  content: "I'm a heading. But am I really a heading?";
}

#div1::before {
  content: "Will Google index this text? I'm sure you are all on the edge of your seat to find out the answer. ";
}

#div1::after {
  content: "Once we know the answer for sure this will be an extremely useful piece of information. I suspect books may be written about this. Films will be made. I have already had to turn down Brad Pitt: 'No Brad, I don't care how inspiring my life story is, Elijah Wood will be playing me and that is final!'";
}

#p1::before {
  content: "I'm just a paragraph, I need no sympathy...";
}

#p1::after {
  content: " You have reached the end of this test. Thank you for reading, good night.";
}

#p2::before {
  content: "An SEO experiment by ";
}

#p2 a::after {
  content: "Colin McDermott @ Search Candy";
}

#p3 a::after {
  content: "+ Source/CodePen";
  font-family: monospace;
}

              
            
!

JS

              
                
              
            
!
999px

Console