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HTML

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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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Babel includes JSX processing.

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HTML 

              
                <main>
<a title="Follow @MikeMJHarris on Twitter" target="_blank" href="https://twitter.com/intent/follow?original_referer=http%3A%2F%2Flocalhost%3A8000%2Fposts%23&amp;region=follow_link&amp;screen_name=MikeMJHarris&amp;tw_p=followbutton">
  <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"  viewBox="-450 -100 600 200" version="1.0">
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       <animate attributeName="fill" 
      attributeType="XML"
      from="white"
      to="white"
      dur="1s"
      />  
    </path>
    <animateMotion
    path="M -500,0 c100,60 100,-50 200,0 c100,50 100,0 300,0"
    begin="1s" dur="2s"    
    />
  
  </g>

  <g transform="scale(0.2)">
    <path style="fill:#2aa9e0"  d="m 100, -50 c -6.3097,2.79897 -13.09189,4.68982 -20.20852,5.54049 7.26413,-4.35454 12.84406,-11.24992 15.47067,-19.46675 -6.79934,4.03295 -14.3293,6.96055 -22.34461,8.53841 -6.41775,-6.83879 -15.56243,-11.111 -25.68298,-11.111 -19.43159,0 -35.18696,15.75365 -35.18696,35.18525 0,2.75781 0.31128,5.44359 0.91155,8.01875 -29.24344,-1.46723 -55.16995,-15.47582 -72.52461,-36.76396 -3.02879,5.19662 -4.76443,11.24048 -4.76443,17.6891 0,12.20777 6.21194,22.97747 15.65332,29.28716 -5.76773,-0.18265 -11.19331,-1.76565 -15.93716,-4.40083 -0.004,0.14663 -0.004,0.29412 -0.004,0.44248 0,17.04767 12.12889,31.26806 28.22555,34.50266 -2.95247,0.80436 -6.06101,1.23398 -9.26989,1.23398 -2.2673,0 -4.47114,-0.22124 -6.62011,-0.63114 4.47801,13.97857 17.47214,24.15143 32.86992,24.43441 -12.04227,9.43796 -27.21366,15.06335 -43.69965,15.06335 -2.84014,0 -5.64082,-0.16722 -8.39349,-0.49223 15.57186,9.98421 34.06703,15.8094 53.93768,15.8094 64.72024,0 100.11301,-53.61524 100.11301,-100.11387 0,-1.52554 -0.0343,-3.04251 -0.10204,-4.55261 6.87394,-4.95995 12.83891,-11.15646 17.55618,-18.21305 z" >
      <animate attributeName="fill" 
      attributeType="XML"
      from="white"
      to="white"
      dur="2s"
      />         
    </path>
    <animateMotion
    path="M -500,0 c100,60 100,-50 200,0 c100,50 100,-30 330,0"
    begin="2s" dur="2s"  rotate="auto"  
    />
  </g>
  <g transform="scale(0.3)">
    <path style="fill:#2aa9e0"  d="m 100, -50 c -6.3097,2.79897 -13.09189,4.68982 -20.20852,5.54049 7.26413,-4.35454 12.84406,-11.24992 15.47067,-19.46675 -6.79934,4.03295 -14.3293,6.96055 -22.34461,8.53841 -6.41775,-6.83879 -15.56243,-11.111 -25.68298,-11.111 -19.43159,0 -35.18696,15.75365 -35.18696,35.18525 0,2.75781 0.31128,5.44359 0.91155,8.01875 -29.24344,-1.46723 -55.16995,-15.47582 -72.52461,-36.76396 -3.02879,5.19662 -4.76443,11.24048 -4.76443,17.6891 0,12.20777 6.21194,22.97747 15.65332,29.28716 -5.76773,-0.18265 -11.19331,-1.76565 -15.93716,-4.40083 -0.004,0.14663 -0.004,0.29412 -0.004,0.44248 0,17.04767 12.12889,31.26806 28.22555,34.50266 -2.95247,0.80436 -6.06101,1.23398 -9.26989,1.23398 -2.2673,0 -4.47114,-0.22124 -6.62011,-0.63114 4.47801,13.97857 17.47214,24.15143 32.86992,24.43441 -12.04227,9.43796 -27.21366,15.06335 -43.69965,15.06335 -2.84014,0 -5.64082,-0.16722 -8.39349,-0.49223 15.57186,9.98421 34.06703,15.8094 53.93768,15.8094 64.72024,0 100.11301,-53.61524 100.11301,-100.11387 0,-1.52554 -0.0343,-3.04251 -0.10204,-4.55261 6.87394,-4.95995 12.83891,-11.15646 17.55618,-18.21305 z" >
       <animate attributeName="fill" 
       attributeType="XML"
       from="white"
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       dur="2.5s"
       />         
     </path>
     <animateMotion
     path="M -500,10 c100,70 100,-40 200,10 c100,60 100,-40 300, 10"
     begin="2.5s" dur="2s"  rotate="auto"  
     />
  </g>

   <g transform="scale(0.15)">
    <path style="fill:#2aa9e0"  d="m 100, -50 c -6.3097,2.79897 -13.09189,4.68982 -20.20852,5.54049 7.26413,-4.35454 12.84406,-11.24992 15.47067,-19.46675 -6.79934,4.03295 -14.3293,6.96055 -22.34461,8.53841 -6.41775,-6.83879 -15.56243,-11.111 -25.68298,-11.111 -19.43159,0 -35.18696,15.75365 -35.18696,35.18525 0,2.75781 0.31128,5.44359 0.91155,8.01875 -29.24344,-1.46723 -55.16995,-15.47582 -72.52461,-36.76396 -3.02879,5.19662 -4.76443,11.24048 -4.76443,17.6891 0,12.20777 6.21194,22.97747 15.65332,29.28716 -5.76773,-0.18265 -11.19331,-1.76565 -15.93716,-4.40083 -0.004,0.14663 -0.004,0.29412 -0.004,0.44248 0,17.04767 12.12889,31.26806 28.22555,34.50266 -2.95247,0.80436 -6.06101,1.23398 -9.26989,1.23398 -2.2673,0 -4.47114,-0.22124 -6.62011,-0.63114 4.47801,13.97857 17.47214,24.15143 32.86992,24.43441 -12.04227,9.43796 -27.21366,15.06335 -43.69965,15.06335 -2.84014,0 -5.64082,-0.16722 -8.39349,-0.49223 15.57186,9.98421 34.06703,15.8094 53.93768,15.8094 64.72024,0 100.11301,-53.61524 100.11301,-100.11387 0,-1.52554 -0.0343,-3.04251 -0.10204,-4.55261 6.87394,-4.95995 12.83891,-11.15646 17.55618,-18.21305 z" >
      <animate attributeName="fill" 
      attributeType="XML"
      from="white"
      to="white"
      dur="1.75s" 
      />         
    </path>
    <animateMotion
    path="M -500, 0 c75,-50 75,60 150,10 c100,-40 100,40 300, 20"
    begin="1.75s" dur="2s"  rotate="auto" />
  </g>
  
  <g>
    <rect id="rect" x="-450" y="-97" width="600" height="194" stroke="#2aa9e0" fill="none" stroke-width="3px"  stroke-dasharray="20, 1700" >
    </rect>
  </g> 

  <defs>
    <clipPath id="clipPath5">
      <text x="-250" y="50" style="font-size: 100px;" text-anchor="middle"  font-family="Verdana"  >
        Follow
      </text>
    </clipPath>
  </defs>

  <g style="clip-path: url(#clipPath5);">

    <circle id="circle" cx="-400" cy="-15" r="500" style="stroke: none; fill: #2aa9e0;">
      <animate dur="5s" begin="0s" attributeName="cx" values="-2000 ; -400" >
      </animate>
     
  </circle>        
  </g>

</svg>
</a>
</main>
!

CSS 

              
                @import "compass/css3";

main {
  text-align: center;
  margin: auto;
  height:100vh;
}

a {
  margin-top: 40vh;
  flex: 1;
  text-decoration: none;
}
 
svg {
  margin-top: 40vh;
  -webkit-font-smoothing: antialiased;
  width: 400px;
}

svg:hover #rect {
  stroke-dasharray: 1700, 1700;
  -webkit-animation: dash 0.5s linear;
}

@-webkit-keyframes dash {
  from { stroke-dasharray: 0, 1700;}
  to {stroke-dasharray: 1700, 1700;}
}


#rect {
  stroke-dasharray: 0, 1700;
}
!

JS
!
999px

Console