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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

HTML

              
                <main>

<div class=bg-paper></div>

<h1>Buttons, link buttons, and interaction animation</h1>

<section>
  <h2>HTML:</h2>
  <p>Full description: <a target=_blank title="[new window]" class=lnk  href="https://websemantics.uk/articles/shiny-buttons/">Shiny CSS buttons</a></p>
  <div class=container>

    <button class=btn--rect--white-gray>Doing something</button>

    <a href="#" class=btn--rect--white-gray>Going somewhere</a>

    <button class=btn--rect--white-blue>Doing something</button>

    <a href="#" class=btn--rect--white-red>Going somewhere</a>

    <button class=btn--rect--white-green>Doing something</button>

    <a href="#" class=btn--rect--white-purple>Going somewhere</a>

    <button class=btn--rect--white-white>Not accessible</button>

    <a href="#" class=btn--rect--black-black>Not accessible</a>

    <button class=btn--rect--black-white>Doing something</button>

    <a href="#" class=btn--rect--white-cyan>Not accessible</a>

    <button class=btn--rect--black-cyan>Doing something</button>

    <a href="#" class=btn--rect--white-twitter>Not accessible</a>

    <button class=btn--rect--black-twitter>Doing something</button>

    <a href="#" class=btn--rect--white-orange>Not accessible</a>

    <button class=btn--rect--black-orange>Doing something</button>
  
  </div>
</section>


<section>
  <h2>SVGs as CSS background-images (overlaid shadow):</h2>
  <p>Conversion: <a target=_blank title="[new window]" class=lnk href="https://websemantics.uk/tools/svg-to-background-image-conversion/">SVG to CSS background-image converter</a></p>
  <div class=container>
  
    <a href="#" class=btn--rnd--cssbg-twitter>Twitter</a>

    <a href="#" class=btn--rnd--cssbg-facebook>Facebook</a>

    <a href="#" class=btn--rnd--cssbg-linkedin>Linked In</a>

    <a href="#" class=btn--rnd--cssbg-googleplus>Google+</a>

    <a href="#" class=btn--rnd--cssbg-codepen>Codepen</a>

  </div>
</section>


<section>
  
  <h2>SVGs embedded in HTML (underlaid shadow):</h2>
  
  <div class=container>

    <button class=btn--rnd--svg-question><svg><use xlink:href="#icon-question"></use></svg></button>

    <button class=btn--rnd--svg-close><svg><use xlink:href="#icon-close"></use></svg></button>

<!--     <button class=btn--rnd--svg-info><svg><use xlink:href="#icon-info"></use></svg></button> -->
  
    <a href="#" class=btn--rnd--svg-twitter><svg><use xlink:href="#twitter"</svg></a>

    <a href="#" class=btn--rnd--svg-facebook><svg><use xlink:href="#facebook"</svg></a>

    <a href="#" class=btn--rnd--svg-linkedin><svg><use xlink:href="#linkedin"</svg></a>

    <a href="#" class=btn--rnd--svg-googleplus><svg><use xlink:href="#googleplus"</svg></a>

    <a href="#" class=btn--rnd--svg-codepen><svg><use xlink:href="#codepen"</svg></a>

  </div>
</section>
      
      
<svg class=visually-hidden>
  <defs>
    
    <symbol viewbox="0 0 48 48" id="twitter">
      <path d="M15.2 31.44c2.4 0 4.47-.74 6.1-2.08-2.22 0-4-1.5-4.6-3.43.3.15.6.15.9.15.44 0 .88 0 1.33-.15-2.23-.44-3.87-2.38-3.87-4.76.75.3 1.5.6 2.23.6-1.36-.9-2.25-2.38-2.25-4.02 0-.9.15-1.8.6-2.53 2.38 2.98 6.1 4.9 10.12 5.06-.15-.3-.15-.6-.15-1.04 0-2.68 2.23-4.9 4.9-4.9 1.35 0 2.7.58 3.58 1.47 1.2-.27 2.24-.57 3.14-1.17-.3 1.05-1.05 2.1-2.1 2.68 1.05-.14 1.95-.3 2.84-.73-.6 1.04-1.5 1.78-2.53 2.53v.58c0 6.55-4.9 14-14 14-2.67 0-5.2-.9-7.43-2.24h1.2z"/>
    </symbol>
    
    <symbol viewbox="0 0 48 48" id="facebook">
      <path d="M19.6 15.4c0-1.4 0-3.6 1-5C21.8 9 23.2 8 25.8 8c4.2 0 6 .6 6 .6l-.8 4.8s-1.3-.4-2.5-.4c-1.3 0-2.5.4-2.5 1.8v3.8h5.2l-.4 4.8h-5V40h-6.2V23.4h-3.4v-4.8h3.4v-3.2z"/>
    </symbol>
    
    <symbol viewbox="0 0 48 48" id="linkedin">
      <path d="M18.37 19.97V36h-5V19.96h5zm7.96 2.2c.66-1.27 2.3-2.6 4.7-2.6 5.05 0 5.98 3.32 5.98 7.64V36h-4.96v-7.8c0-1.86-.03-4.25-2.58-4.25-2.6 0-3 2.03-3 4.12V36H21.5V19.96h4.76v2.2h.07zM15.88 12c1.6 0 2.88 1.3 2.88 2.9 0 1.6-1.3 2.88-2.88 2.88-1.6 0-2.9-1.3-2.9-2.88 0-1.6 1.3-2.9 2.9-2.9z"/>
    </symbol>
    
    <symbol viewbox="0 0 48 48" id="googleplus">
      <path d="M8.04 23.47c.1-5.5 5.16-10.33 10.66-10.15 2.64-.12 5.12 1.03 7.14 2.64-.86.98-1.75 1.92-2.7 2.8-2.43-1.67-5.9-2.15-8.32-.2-3.47 2.4-3.63 8.06-.3 10.65 3.26 3 9.4 1.5 10.3-3-2.03 0-4.07 0-6.1-.03-.02-1.2-.02-2.4-.02-3.63h10.22c.2 2.87-.17 5.9-1.93 8.27-2.7 3.74-8 4.84-12.2 3.24S7.62 28 8 23.5zm25.82-4.1h3.04c0 1 0 2.04.02 3.06 1.02 0 2.04 0 3.05.02v3.04h-3.05c0 1 0 2-.02 3h-3.04c0-1 0-2.03-.02-3.04-1.02 0-2.04 0-3.05-.03V22.4l3-.02v-3.03z"/>
    </symbol>
    
    <symbol viewbox="0 0 48 48" id="codepen">
      <path d="M24.6 8.5c-.3-.4-.8-.5-1.6 0L8.7 18c-.4 0-.7.4-.7 1.2v9.5c0 .7.3 1 .7 1.3L23 39.6c.7.3 1.3.3 1.6 0L39.3 30c.5-.3.7-.8.7-1.3v-9.5c0-1-.7-1.2-.7-1.2L24.6 8.5zm-2 27.6L12 29l4.7-3.2 6 4.2v6zm2.7 0v-6l6-4 4.7 3-10.5 7zM24 27l-4.8-3 4.8-3.2 4.8 3.2-4.8 3zm-13.3-5.3l3.7 2.3-3.7 2.2v-4.5zm26.6 4.5L33.6 24l3.7-2.3v4.5zm-12-14.4L36 19.2l-4.7 3.2-6-4v-6.6zm-2.6 0v6.4l-6 4.2-4.8-3.2L22.2 12v-.2z"/>
    </symbol>

    <symbol viewBox="0 0 48 48" id="icon-question">
      <path d="M21.76 36.12c-2 .7-2.76 2.7-1.52 4.1.1.1.74.63.9.72 1.35.77 3.5.58 4.62-.58 2.2-2.22-.77-5.35-4-4.24zm3.56-18.08c-.5.85-1.47 1.7-3.7 2.05-4.82.7-6.62-.8-8.2-2.6-1.42-1.7-.88-4.5.1-6.3.7-1.4 2.1-2.7 3.4-3.4 1-.6 2.2-.8 2.78-.9 2.1-.5 3.8-.4 6-.2 2.6.2 5.6 1.4 7.45 3.3 1.43 1.5 2.5 3.1 2.26 5.2-.7 6.4-3.6 7.5-6.5 10-5.6 4.8-2.9 9.2-2.9 9.2l-5.5-1.77s-.1-1.44-.02-2.1c.26-2.36 2.26-3.96 3.8-5.56 1-1 2.8-2.8 3.75-4 3.14-3.83 3.1-6.65-.4-10.26-1.52-1.6-3.2-2.04-5.33-2.04-.7 0-1.94 0-2.74.2-.48.12-1.86.76-2.08.92-1.64 1.2-3.34 3.7-2.2 6.3.9 2.07 3.76 2.38 5.7 1.87-2.15-1.66-1.53-4.64 1.1-5.22.6-.2 1.4-.2 2 0 1.28.52 1.84 1.36 1.84 3.07 0 .77-.2 1.5-.6 2.03z"/>
    </symbol>
    
    <symbol viewBox="0 0 48 48" id="icon-close">
      <path d="M24 21.3l6.3-6.2 2.7 3-6.3 6 6.3 6.6-2.7 2.7L24 27l-6 6-3-2.6 6.5-6.3-6.3-6 3-3 6.2 6.6z"/>
    </symbol>

    <symbol viewBox="0 0 48 48" id="icon-info">
      <path class="x" d="M12 21.7h24v4.6H12z"></path>
      <path class="x" d="M21.7 12h4.6v24h-4.6z"></path>
      <path class="o" d="M25.4 16.97c-.76 0-1.78.42-2.26.42-.95 0-5.62-1.2-6.38.3-.57 1.12-.2 1.7.76 1.9.57 0 2.84-.2 3.6.55.57.4.57 1.7.57 2.46v11.6c0 .58.1 2.47-1 2.66-1.18.2-4-.75-4 1.33 0 .4.2.9.4 1.1.92 1.1 2.62.2 3.8.2 2.23 0 6 .2 8.42.2.37 0 1.5-.4 1.88-.8 1.15-2.08-2.26-1.7-3-1.9-.38 0-.57 0-.76-.18-1.7-1.14-.95-2.85-.95-4.55l.2-12.3c0-.97.16-2.44-.95-3-.12-.03-.23-.04-.36-.04z"></path>
      <circle class="o" cx="23" cy="11" r="4"></circle>
    </symbol>

    <filter id="bg-paper"><feTurbulence type="fractalNoise" baseFrequency="0.05" stitchTiles="stitch" numOctaves="3" result="noise"/><feDiffuseLighting in="noise" lighting-color="#fff" surfaceScale="1" result="diffLight"><feDistantLight azimuth="35" elevation="60"/></feDiffuseLighting></filter>
    
  </defs>
</svg>

</main>

<!-- Footer codepen include -->
[[[https://codepen.io/2kool2/pen/mKeeGM]]]
              
            
!

CSS

              
                /* Generic styling */
*, *::after, *::before {
  box-sizing: border-box;
}
body {
  position: relative;
  font-family: sans-serif;
  line-height: 1.5;
  background-color: #e4dcca;
  margin: 0;
}
main {
  height: 100%;
  padding: 1rem 2rem;
  overflow: auto;
}
h1,h2 {font-weight: 400}
h1 {margin-bottom: 1rem}
h2,p {margin: 1rem 0}
.visually-hidden{position:absolute;overflow:hidden;clip:rect(0 0 0 0);height:1px;width:1px;margin:-1px;padding:0;border:0}
.lnk {
  color: #000 !important;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  transition: all .3s ease-out;
  outline: 0 solid transparent;
}
.lnk:hover,
.lnk:focus {
  background-color: #fff;
  outline: .25em solid #fff;
}
.bg-paper {
  position: absolute;
  top: 0;
  left: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  opacity: 0.5;
  filter: url(#bg-paper);
}
.container {
  display:flex;
  justify-content: space-around;
  align-content: center;
  flex-wrap: wrap;
}

/* Shine yer buttons guv? */

button::-moz-focus-inner {
  padding: 0 !important;
  border: 0 none !important;
}
[class^="btn"] {

  white-space: pre;
  overflow: visible;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  -webkit-appearance: button;
  -webkit-appearance: none;

  text-rendering: optimizeLegibility;
  will-change: transform, box-shadow, text-shadow;
  
  /* Safari fix for thin text on hover */
  -webkit-font-smoothing: subpixel-antialiased;
 
  position: relative;
  display: inline-block;
  font-size: inherit;
  font-weight: 100;
  line-height: 3em;
  text-align: center;
  text-decoration: none !important;
  cursor: pointer;
  margin: 1rem;
  outline: 0 solid;
  border: 1px solid;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.25),
    0 1px 0 rgba(255, 255, 255, 0.25) inset,
    0 0 0 rgba(0, 0, 0, 0.5) inset,
    0 1.25em 0 rgba(255, 255, 255, 0.08) inset,
    0 -1.25em 1.25em rgba(0, 0, 0, 0.3) inset,
    0 1.25em 1.25em rgba(255, 255, 255, 0.1) inset;
  transition: box-shadow 0.3s ease-out,  transform 0.3s ease-out;
}
[class^="btn--rect"] {
  padding: 0 1rem;
  border-radius: .25rem;
}
[class^="btn--rnd"] {
  padding: 0;
  border-radius: 50%;
}

[class^="btn"]:hover {
  box-shadow:
    0 .25em .5em rgba(0, 0, 0, 0.5),
    0 1px 0 rgba(255, 255, 255, 0.25) inset,
    0 0 0 rgba(0, 0, 0, 0.25) inset,
    0 1.25em 0 rgba(255, 255, 255, 0.03) inset,
    0 -1.25em 1.25em rgba(0, 0, 0, 0.15) inset,
    0 1.25em 1.25em rgba(255, 255, 255, 0.05) inset;
}
[class^="btn"]:focus {
  outline: 0 solid;
/*   outline: 4px solid #0ff; */
  box-shadow:
    0 .125em .5em rgba(0, 0, 0, 1),
    0 1px 0 rgba(255, 255, 255, 0.25) inset,
    0 0 0 rgba(0, 0, 0, 0.25) inset,
    0 1.25em 0 rgba(255, 255, 255, 0.03) inset,
    0 -1.25em 1.25em rgba(0, 0, 0, 0.15) inset,
    0 1.25em 1.25em rgba(255, 255, 255, 0.05) inset;
}

[class^="btn--rect"]:hover {
  will-change: transform, box-shadow, text-shadow;
  transform: scale(1.02);
}
[class^="btn--rnd"]:hover {
  will-change: transform, box-shadow;
  transform: scale(1.15);
}
[class^="btn"].-js-clicked {
  animation: btn-pressed .3s ease-out forwards;
}

@keyframes btn-pressed {
  50% {
    transform: scale(.985);
    box-shadow:
      0 0 0 rgba(255, 255, 255, 0),
      0 1px 0 rgba(255, 255, 255, 0) inset,
      0 0 .5em rgba(0, 0, 0, 0.5) inset,
      0 1.25em 0 rgba(255, 255, 255, 0.03) inset,
      0 -1.25em 1.25em rgba(0, 0, 0, 0.15) inset,
      0 1.25em 1.25em rgba(255, 255, 255, 0.05) inset;
  }
}

[class^="btn--rect"]::before {
  content: "";
  display: block;
  position: absolute;
  background:-webkit-gradient(linear, left top, right top, from(rgba(255,255,255,0)),color-stop(50%, rgba(255,255,255,1)),to(rgba(255,255,255,0)));
background:-webkit-linear-gradient(left, rgba(255,255,255,0) 0%,rgba(255,255,255,1) 50%,rgba(255,255,255,0) 100%);
background:-o-linear-gradient(left, rgba(255,255,255,0) 0%,rgba(255,255,255,1) 50%,rgba(255,255,255,0) 100%);
background:linear-gradient(left, rgba(255,255,255,0) 0%,rgba(255,255,255,1) 50%,rgba(255,255,255,0) 100%);
  padding: 0 12px;
  top: 0;
  left: 15%;
  height: 1px;
  width: 40%;
  box-shadow: 0 1px 5px rgba(255, 255, 255, 0.2);
  transition: all 0.3s ease-in-out 0s;
}
[class^="btn--rect"]:active::before {
  opacity: 0;
}
[class^="btn--rect"]:hover::before,
[class^="btn--rect"]:focus::before {
  left: 45%;
}
/* Button colours defined here */

[class^="btn--"][class*="--white"] {
  color: #fff; 
  font-weight: 100;
  letter-spacing: .025em;
  text-shadow: 0 0 2px #000;
}
[class^="btn--"][class*="--black"] {
  color: #000;
  font-weight: 400;
}

[class^="btn--"][class*="--white-gray"] {
  background-color: #555;
  border-color:  #222;
}

[class^="btn--"][class*="--white-red"] {
  background-color: #f00;
  border-color:  #500;
}
[class^="btn--"][class*="--white-green"] {
  /* Brightest WCAG 2 green with text-shadow */
  background-color: #009700;
  border-color:  #050;
}
[class^="btn--"][class*="--white-blue"] {
  background-color: #00f;
  border-color:  #007;
}

[class^="btn--"][class*="--white-white"] {
  /* Fails WCAG 2 */
  background-color: #fff;
  border-color: #777;
}
[class^="btn--"][class*="--black-black"] {
  /* Fails WCAG 2 */
  background-color: #000;
  border-color: #777;
  text-shadow: 0 0 2px #fff;
}

[class^="btn--"][class*="--white-black"] {
  background-color: #000;
  border-color:  #000;
}
[class^="btn--"][class*="--black-white"] {
  background-color: #fff;
  border-color:  #777;
}

[class^="btn--"][class*="--white-purple"] {
  background-color: #4b3f5e;
  border-color: #291b38;
}

[class^="btn--"][class*="--white-cyan"] {
  /* Fails WCAG 2 */
  background-color: #0ff;
  border-color: #099;
}
[class^="btn--"][class*="--black-cyan"] {
  background-color: #0ff;
  border-color: #099;
}

[class^="btn--"][class*="--white-twitter"] {
  /* Fails WCAG 2 */
  background-color: #1DA1F2;
  border-color: #066;
}
[class^="btn--"][class*="--black-twitter"] {
  background-color: #1DA1F2;
  border-color: #066;
}


[class^="btn--"][class*="--white-orange"] {
  /* Closest WCAG 2 pass to #f60 with textshadow */
  background-color: #d94000; /*#f60;*/
  border-color: #930;
}
[class^="btn--"][class*="--black-orange"] {
  background-color: #f60;
  border-color: #930;
}




/* Social links: CSS backgrounds */

[class^="btn--rnd--cssbg"] {
  background-color: currentColor;
  text-indent: -999rem;
  width: 4rem;
  height: 4rem;
}

.btn--rnd--cssbg-twitter {
  color: hsl(200, 72%, 55%);
  border-color: hsl(200, 72%, 45%);
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 48 48' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='%23fff' d='M15.2 31.44c2.4 0 4.47-.74 6.1-2.08-2.22 0-4-1.5-4.6-3.43.3.15.6.15.9.15.44 0 .88 0 1.33-.15-2.23-.44-3.87-2.38-3.87-4.76.75.3 1.5.6 2.23.6-1.36-.9-2.25-2.38-2.25-4.02 0-.9.15-1.8.6-2.53 2.38 2.98 6.1 4.9 10.12 5.06-.15-.3-.15-.6-.15-1.04 0-2.68 2.23-4.9 4.9-4.9 1.35 0 2.7.58 3.58 1.47 1.2-.27 2.24-.57 3.14-1.17-.3 1.05-1.05 2.1-2.1 2.68 1.05-.14 1.95-.3 2.84-.73-.6 1.04-1.5 1.78-2.53 2.53v.58c0 6.55-4.9 14-14 14-2.67 0-5.2-.9-7.43-2.24h1.2z'/%3E%3C/svg%3E");
}

.btn--rnd--cssbg-facebook {
  color: hsl(226, 42%, 41%);
  border-color: hsl(226, 42%, 31%);
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 48 48' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='%23fff' d='M19.6 15.4c0-1.4 0-3.6 1-5C21.8 9 23.2 8 25.8 8c4.2 0 6 .6 6 .6l-.8 4.8s-1.3-.4-2.5-.4c-1.3 0-2.5.4-2.5 1.8v3.8h5.2l-.4 4.8h-5V40h-6.2V23.4h-3.4v-4.8h3.4v-3.2z'/%3E%3C/svg%3E");
}

.btn--rnd--cssbg-linkedin {
  color: hsl(199, 100%, 35%);
  border-color: hsl(199, 100%, 25%);
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 48 48' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='%23fff' d='M18.37 19.97V36h-5V19.96h5zm7.96 2.2c.66-1.27 2.3-2.6 4.7-2.6 5.05 0 5.98 3.32 5.98 7.64V36h-4.96v-7.8c0-1.86-.03-4.25-2.58-4.25-2.6 0-3 2.03-3 4.12V36H21.5V19.96h4.76v2.2h.07zM15.88 12c1.6 0 2.88 1.3 2.88 2.9 0 1.6-1.3 2.88-2.88 2.88-1.6 0-2.9-1.3-2.9-2.88 0-1.6 1.3-2.9 2.9-2.9z'/%3E%3C/svg%3E");
}

.btn--rnd--cssbg-googleplus {
  color: hsl(7, 71%, 55%);
  border-color: hsl(7, 71%, 45%);
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 48 48' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='%23fff' d='M8.04 23.47c.1-5.5 5.16-10.33 10.66-10.15 2.64-.12 5.12 1.03 7.14 2.64-.86.98-1.75 1.92-2.7 2.8-2.43-1.67-5.9-2.15-8.32-.2-3.47 2.4-3.63 8.06-.3 10.65 3.26 3 9.4 1.5 10.3-3-2.03 0-4.07 0-6.1-.03-.02-1.2-.02-2.4-.02-3.63h10.22c.2 2.87-.17 5.9-1.93 8.27-2.7 3.74-8 4.84-12.2 3.24S7.62 28 8 23.5zm25.82-4.1h3.04c0 1 0 2.04.02 3.06 1.02 0 2.04 0 3.05.02v3.04h-3.05c0 1 0 2-.02 3h-3.04c0-1 0-2.03-.02-3.04-1.02 0-2.04 0-3.05-.03V22.4l3-.02v-3.03z'/%3E%3C/svg%3E");
}

.btn--rnd--cssbg-codepen {
  color: #000;
  border-color: #000;
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 48 48' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='%23fff' d='M24.6 8.5c-.3-.4-.8-.5-1.6 0L8.7 18c-.4 0-.7.4-.7 1.2v9.5c0 .7.3 1 .7 1.3L23 39.6c.7.3 1.3.3 1.6 0L39.3 30c.5-.3.7-.8.7-1.3v-9.5c0-1-.7-1.2-.7-1.2L24.6 8.5zm-2 27.6L12 29l4.7-3.2 6 4.2v6zm2.7 0v-6l6-4 4.7 3-10.5 7zM24 27l-4.8-3 4.8-3.2 4.8 3.2-4.8 3zm-13.3-5.3l3.7 2.3-3.7 2.2v-4.5zm26.6 4.5L33.6 24l3.7-2.3v4.5zm-12-14.4L36 19.2l-4.7 3.2-6-4v-6.6zm-2.6 0v6.4l-6 4.2-4.8-3.2L22.2 12v-.2z'/%3E%3C/svg%3E");
}



/* Social links: HTML embedded SVG */

[class^="btn--rnd--svg"] {
  fill: #fff;
  background-color: currentColor;
}
[class^="btn--rnd--svg"] > svg {
  display: block;
  width: 4rem;
  height: 4rem;
  pointer-events: none;
  transition: all .3s ease-out;
}

.btn--rnd--svg-question {
  color: #FAFAFD;
  border-width: 2px;
  border-color: #ccc;
  fill: green;
}
.btn--rnd--svg-question:hover,
.btn--rnd--svg-question:focus {
  fill: #418cec;
  border-color: #418cec;
}


.btn--rnd--svg-close {
  color: #FAFAFD;
  border-width: 2px;
  border-color: #ccc;
  fill: green;
}
.btn--rnd--svg-close:hover,
.btn--rnd--svg-close:focus {
  fill: #418cec;
  border-color: #418cec;
}

.btn--rnd--svg-twitter {
  color: hsl(200, 72%, 55%);
  border-color: hsl(200, 72%, 45%);
}

.btn--rnd--svg-facebook {
  color: hsl(226, 42%, 41%);
  border-color: hsl(226, 42%, 31%);
}

.btn--rnd--svg-linkedin {
  color: hsl(199, 100%, 35%);
  border-color: hsl(199, 100%, 25%);
}

.btn--rnd--svg-googleplus {
  color: hsl(7, 71%, 55%);
  border-color: hsl(7, 71%, 45%);
}

.btn--rnd--svg-codepen {
  color: #000;
  border-color: #000;
}
              
            
!

JS

              
                var supportsES6 = (function() {
  // https://gist.github.com/bendc/d7f3dbc83d0f65ca0433caf90378cd95
  try {
    new Function('(a = 0) => a');
    return true;
  }
  catch (err) {
    return false;
  }
}());



var Button_Click_Animation = (function (window, document) {

  'use strict';
  if (!supportsES6) return;

  const buttons = document.querySelectorAll('[class^=btn--]');
  const clickedClass = '-js-clicked';

  const btn_clicked = e => {
    const btn = e.target;
    btn.classList.add(clickedClass);
    btn.addEventListener('animationend', e => {
      btn.classList.remove(clickedClass);
    }, {once: true});
    btn.focus();
  };

  Object.values(buttons).forEach(btn => {
    btn.addEventListener('click', btn_clicked);
    btn.addEventListener('blur', e => {
      e.target.classList.remove(clickedClass);
    });
  });

}(window, document));
              
            
!
999px

Console