CSS webkit and SVG do not play well together.
In particular, this is just the CSS that uses the keyframe animation / transform / @ links:
(-moz-webkit, -ms-webkit, -o-webkit, -webkit)
If you notice in your violin, CSS shows:
.activity-box img { display: block; position: absolute; width: 40px; height: 40px; -webkit-animation: spin 1s infinite linear; -moz-animation: spin 1s infinite linear; -o-animation: spin 1s infinite linear; animation: spin 1s infinite linear; }
Wouldn't it be nice if you could use .activity-box svg instead of .activity-box img ?
Unfortunately, this does not work, svg displayed in the browser, and not using CSS transformations of webkit.
<div id="flask"> <div class="background"></div> <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 113 130" xml:space="preserve"> <g> <path fill="#E6E9EA" d="M0,0v130h112.084L111.75,0H0z M94.75,128C71,128,56,128,56,128s-14.873,0-38.623,0s-13.945-19.422-6.33-35.945S40,41.25,40,41.25V3h16h11v38.25c0,0,23.901,34.283,31.517,50.805S118.5,128,94.75,128z"></path> <path fill="none" stroke="#000000" stroke-width="5" stroke-miterlimit="10" d="M56,127.5c0,0-14.873,0-38.623,0s-13.695-19.172-6.08-35.695C18.912,75.283,40.5,41.25,40.5,41.25V2.5h-9H56h19.5h-8v38.75c0,0,23.651,34.033,31.267,50.555c7.615,16.523,19.733,35.695-4.017,35.695S56,127.5,56,127.5z"></path> </g> </svg> ... </div>
I would recommend either:
a) convert the animation to .gif .png or .jpg and not use svg (edit: .gif also does not convert, you can use the .png file instead and then create the swap function img.src for each frame of the animation using JavaScript)
b) Remove the webkit CSS animation and remake your svg for animation yourself using svg animation. see: https://developer.mozilla.org/en-US/docs/Web/SVG/Element/animateTransform